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Space / Astronomy: Most Popular Articles

These articles are the most popular over the last month.
Visual Tour of Solar System
Take a Visual Solar System Tour with us. Blast off to discover information on the sun in our solar system. Learn more about the Sun. Here is information on our sun and links to pictures and more info.
Earth Pictures - Earth Globe
Earth Globe 11/20/1998
Neil Armstrong Biography
Born on August 5, 1930 in Auglaize County, OH, Neil Armstrong was the eldest of 3 children. Neil Armstrong worked at numerous jobs around town and at the nearby airport so he could take flying lessons at the age of 15 and on his 16th birthday he was issued a pilot's license. Neil Armstrong won his jet wings at Pensacola Naval Air Station in Florida at the age of 20, the youngest pilot in his squadron. Neil Armstrong became the first man on the moon on July 20, 1969 durin the Apollo 11 mission.
Earth Pictures - Full Earth
View of the Earth as seen by the Apollo 17 crew traveling toward the Moon. This translunar coast photograph extends from the Mediterranean Sea area to the Antarctica South polar ice cap. This is the first time the Apollo trajectory made it possible to photograph the South polar ice cap. Note the heavy cloud cover in the Southern Hemisphere. Almost the entire coastline of Africa is clearly visible.
2012 Conspiracy Theories
There has been a lot of interest lately in the theory that the world is going to end in the year 2012. So, is this something that we need to be taking seriously? Is Earth in danger of being annihilated? Is the government hiding the facts from us?
Constellation in a Canister
People have looked at the stars for many, many years. They could imagine pictures in stars. Those pictures are called constellations. After you do this activity, see if you can find the constellations in the night sky.
Shuttle Challenger Disaster
When the Challenger disaster occurred, it exploded killing all aboard, it shocked the nation, started a NASA investigation, and led to many changes in the shuttle program. Here, we look back at the Challenger disaster to see what happened. Most of us remember where we were when we learned of the Challenger disaster.
Solar System Tour
Astronomy Solar System Tour, an Astronomy Guide to Space exploration close to home. Discover information on planets in our solar system. Find pictures of objects in our solar system. Learn more about our galactic neighborhood, our solar system.
Free Astronomy and Space Posters - Printable Astronomy and Space Posters
Print these free astronomy and space posters from your home computer to create your own astronomy and space posters.
Earth Pictures - Distant Earth and Moon
This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, by NASAs Voyager 1 when it was 11.66 million km (7.25 million miles) from Earth. The moon is at the top of the picture and beyond the Earth as viewed by Voyager. - In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic.
Top 10 Closest Stars
Stars are balls of mostly hydrogen and helium gas that shine extremely brightly. Stars are so massive that their cores are extremely dense and hot. You can see thousands of stars when you look up at night. Here are the Top 10 Closest Stars to our solar system.
Astronomy - Space Exploration Activity Book for Kids
A fun activity book for young astronauts or astronomers from your about astronomy - space guide. This astronomy - space activity book includes puzzles games - coloring pages.
Brightest Stars
Stars are massive shining spheres of hot gas, the closest of which is our Sun. Stars are primarily made of hydrogen, smaller amounts of helium, and trace amounts of other elements. Even the most abundant of the other elements present in stars (oxygen, carbon, neon, and nitrogen) are only present in very small quantities. Those stars which you see with your naked eye in the night sky all belong to the Milky Way Galaxy, the huge system of stars that contains our solar system.
30 Minute Rocket
You can make a 30 Minute Rocket with straws and a soda bottle. What you need: plastic soda pop bottle, one thin drinking straw, one thick drinking, straw, tape, clay, scissors, and copy or computer paper. Follow the instructions for the 30 Minute Rocket. Give the bottle a quick squeeze. You have an air bottle rocket!
Tsunami Damage in Indonesia - Pictures of Tsunami Damage in Indonesia - Earthquake Spawns Tsunami
On December 26, 2004, a tsunami swept across the Indian ocean, spawned by a magnitude 9.0 earthquake off the coast of Sumatra. Indonesia suffered the many tsunami casualties, part of the total death toll of over 155,000. Here we see before and after images of many of the areas of Indonesia hardest hit by the tsunami. Click each image for a larger view.
Telescopes for Kids
Everyone has to start somewhere. Star your kids off right with quality telescopes at good prices. Check here for some great reflectors and refractors. Less expensive telescopes.
Earth Pictures - First View of Earth from Moon
The world's first view of Earth taken by a spacecraft from the vicinity of the Moon. - The photo was transmitted to Earth by the United States Lunar Orbiter I and received at the NASA tracking station at Robledo De Chavela near Madrid, Spain. This crescent of the Earth was photographed August 23, 1966 at 16:35 GMT when the spacecraft was on its 16th orbit and just about to pass behind the Moon.
September 11, 2001 Terroris...
On September 11, 2001, terrorists attacked the World Trade Center Twin Towers in New York City and the Pentagon in Washington. Read about 9/11/01 as viewed by Frank Culbertson on the International Space Station. Learn the reaction of astronauts including Frank Culbertson aboard the International Space Station as the World Trade Centers fell to terrorist attacks on 9/11/2001. Find out the effect of the 9 11 attack on the pentagon to the space program.
November 2009 Monthly Sky Guid
Learn what is happening in November 2009 and what has happened in November in the past. Discover highlights of the night sky and learn what to look for in November 2009.
10 Things About the Sun
Our Sun has inspired mythology in almost all cultures, including ancient Egyptians, Aztecs, Native Americans, and Chinese. Our Sun is actually the closest star to Earth. The Sun is a massive shining sphere of hot gas. The connection and interaction between the Sun and the Earth drive the seasons, currents in the ocean, weather, and climate.
Aristotle Biography
Aristotle was born around 384 BC in Stagirus, Greece. Around the age of 17, Aristotle became a student at Plato's Academy in Athens. Aristotle was so impressive as a student that he soon became a teacher, himself, remaining at the academy for 20 years. In 335 BC Aristotle traveled to Athens with his circle of assistants to staff his new school, the Lyceum. Two areas which he advanced, which are of particular interest to readers of this site were physics and astronomy. He died at the age of 62.
Telescope Astronomy Basics
Discover the basics of telescope astronomy with this guide. Telescopes come in three basic designs; Refractor, Reflector, and Catadioptric. Telescope astronomy is often the goal of many amateur astronomers. Learn this information before purchasing an instrument for telescope astronomy.
Earth Pictures - Earth from Apollo 8
This is how the Earth looked as photographed from a point near the Moon by the Apollo 8 astronauts. The Earth fills less than one percent of the frame exposed through 80mm lens. North is approximately vertical. Kinda lonely, isn't it?
Venus
Venus - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data and Images of Venus. Venus. Astronomy Guide to Space exploration close to home. Information on our solar system. Venus planetary data and graphics.
How to Become An Astronaut
Many of us dreamed of becoming astronauts when we were young. Some of us never got over that dream. When John Glenn rode the shuttle in 1998 at the age of 77, it breathed new hope into many would-be astronauts. So, how do you become an astronaut? Let's discover the path, together.
Returning To The Moon
It has been over 37 years since man has set foot on the Moon. Recently NASA began making preparations for our return. But is this a good idea? Is it worth risking human life for such a dangerous undertaking?
Earth Pictures - Global View of the Arctic Ocean
NASA researchers have new insights into the mysteries of Arctic sea ice, thanks to the unique abilities of Canada's Radarsat satellite. The Arctic is the smallest of the world's four oceans, but it may play a large role in helping scientists monitor Earth's climate shifts. - Using Radarsat's special sensors to take images at night and to peer through clouds, NASA researchers can now see the complete ice cover of the Arctic.
Pythagoras of Samos Biography
Pythagoras, the son of Mnesarchus and Pythais, was born on the island of Samos, off the coast of Asia Minor (what is now mostly Turkey), about 569 BC. Besides his contributions to mathematics, Pythagoras was essential to the early field of astronomy. As Plato later would believe, Pythagoras felt the sphere was the perfect shape. This may have lead to his assertion that the Earth was a sphere. He realized the orbit of the Moon was inclined to the equator of the Earth.
Earth Pictures - The Earth & Moon
During its flight, the Galileo spacecraft returned images of the Earth and Moon. Separate images of the Earth and Moon were combined to generate this view. The Galileo spacecraft took the images in 1992 on its way to explore the Jupiter system in 1995-97. The image shows a partial view of the Earth centered on the Pacific Ocean about latitude 20 degrees south.
Earth Pictures - First Picture of the Earth and Moon in a Single Frame
This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded September 18, 1977, but NASAs Voyager 1 when it was 7.25 million miles (11.66 million kilometers) from Earth. The moon is at the top of the picture and beyond the Earth as viewed by Voyager. In the picture are eastern Asia, the western Pacific Ocean and part of the Arctic.
Dr. Mae C. Jemison
Dr. Mae Jemison was the first African-American female astronaut in Space. Dr. Mae Jemison is "Not Limited By The Imagination of Others." Dr. Mae Jemison is well-versed in African and African-American Studies, speaks fluent Russian, Japanese, and Swahili, as well as English and is trained in dance and choreography. This is a brief biography of Doctor Mae C. Jemison.
NASA Discovers a New Planet
Literally Planet X, especially if you use Roman numerals. NASA scientists have discovered a 10th planet in our solar system. The planet, larger than Pluto, was discovered using the Samuel Oschin Telescope at Palomar Observatory near San Diego, Calif. The discovery was announced today by planetary scientist Dr. Mike Brown of the California Institute of Technology in Pasadena, Calif., whose research is partly funded by NASA.
Astronomy 101
Astronomy 101 - This basic Astronomy course was designed for those who have an interest in but little education in astronomy. Learn the basics of astronomy here.
The Sun
Sun. Astronomy Guide to Space exploration close to home. Information on our sun. Solar data and graphics.
Earth Pictures - Earthrise - Apollo 8
This view of the rising Earth greeted the Apollo 8 astronauts as they came from behind the Moon after the lunar orbit insertion burn. Earth is about five degrees above the horizon in the photo. The unnamed surface features in the foreground are near the eastern limb of the Moon as viewed from Earth. The lunar horizon is approximately 780 kilometers from the spacecraft. Width of the photographed area at the horizon is about 175 kilometers.
Earth Pictures - Global Images of Earth
Global images of Earth from Galileo. In each frame, the continent of Antarctica is visible at the bottom of the globe. South America may be seen in the first frame (top left), the great Pacific Ocean in the second (bottom left), India at the top and Australia to the right in the third (top right), and Africa in the fourth (bottom right).
Pluto Picture - Pluto
An artist's conception of Pluto and its moon Charon.
Earth Pictures - Earthrise Over Plaskett Crater
The above is a view from Clementine of the full Earth over the north pole of the Moon. The crater with a central peak in the foreground is Plaskett (820N, 1740E; 110 kilometers in diameter). On Earth, Africa is clearly visible and nearly cloud free.
Pluto Picture - Pluto in True Color
Pluto is mostly brown. This picture captures the true colors of Pluto as well as the highest surface resolution so far recovered. No spacecraft has yet visited this most distant planet in our Solar System. The above map was created by tracking brightness changes from Earth of Pluto during times when it was being partially eclipsed by its moon Charon. The map therefore shows the hemisphere of Pluto that faces Charon.
What Is The Solar System?
Solar means dealing with the sun, Sol. Our sun is just a star, the closest one to Planet Earth. The Solar System is everything that centers around the sun. That includes 8 planets as well as some smaller objects such as asteroids, comets and meteoroids. Previously, we had considered one of those smaller objects to be a ninth planet, but last year, the International Astronomical Union decided that Pluto is a Dwarf Planet.
Mercury
Mercury - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data and Images of Mercury. Mercury. Astronomy Guide to Space exploration close to home. Information on our solar system. Mercury planetary data and graphics.
What Is Astronomy
What Is Astronomy? - Basics Series; What You Need To Know About Astronomy and Astronomers. Discover what the science of astronomy covers, how long astronomers have been studying it, and who the astronomers are who have been studying it. Learn the basics of the science of astronomy.
Earth Pictures - Earth and Moon as viewed from Mars
This is the first image of Earth ever taken from another planet that actually shows our home as a planetary disk. Because Earth and the Moon are closer to the Sun than Mars, they exhibit phases, just as the Moon, Venus, and Mercury do when viewed from Earth. As seen from Mars by MGS on 8 May 2003 at 13:00 GMT (6:00 AM PDT), Earth and the Moon appeared in the evening sky.
Sky Maps From About Astronomy and Space - Discover the Stars with These Sky Maps
Sky Maps From About Astronomy and Space Plansipheres Powered By "Your Sky" Software, Written By John
Earth Pictures - Planet Earth
Planet Earth 07/18/1995
Hubble Space Telescope
The Hubble Telescope, NASA's first space based telescope was named for American astronomer Edwin P. Hubble. Dr. Hubble confirmed an "expanding" universe, which provided the foundation for the Big Bang theory. The Hubble Telescope provide a closer look at the universe around us.
NASA Spitzer Shares The Wealth
Like a philanthropist donating a prized collection to a museum, NASA's Spitzer Space Telescope has opened a virtual vault rich with scientific data. The Spitzer Science Archive now provides astronomers access to the infrared telescope's data well before the mission's one-year anniversary in space. NASA Spitzer Shares The Wealth - Spitzer Space Telescope Image.
6 Things About Telescopes
So, you want to know how to buy a telescope. Being a knowledgeable consumer is key Before you go shopping, learn as much as you can about telescopes. We will try to help you get started here, with the six things you need to know about how to buy a telescope.
Earth Pictures - Earth and Moon as viewed by Mariner 10
Mariner 10 was launched on November 3, 1973, 12:45 am PST, from Cape Canaveral on an Atlas/Centaur rocket (a reconditioned Intercontinental Ballistic Missile - ICBM). Within 12 hours of launch the twin cameras were turned on and several hundred pictures of both the Earth and the Moon were acquired over the following days.
United States Astronomy Schools - Colleges and Universities With Astronomy Degree Programs in the US
United States Astronomy Schools Colleges and Universities With Astronomy Degree Programs in the US  
Constellations Pictures - Aries - Picture of the Constellation Aries
The Ram - Genitive: Arietis Abbreviations: Ari, Arie Right Ascension, (h): 3 Declination, (deg): 20N
The Evolution of the SpaceSuit
Ever since Alan Shepard's history making flight in 1961, NASA astronauts have relied on spacesuits to help them work and keep them safe. From the shiny silver of the Mercury suit to the orange "pumpkin suits" of shuttle crew, the suits have served as personal spacecraft, protecting explorers during launch and entry, while working on the International Space Station, or walking on the moon.
Image of the Week for October 26, 2007 Quintuplet Cluster
Penetrating 25,000 light-years of obscuring dust and myriad stars, the Hubble Space Telescope has provided the clearest view yet of one of the largest young clusters of stars inside our Milky Way galaxy, located less than 100 light-years from the very center of the Galaxy. Having the equivalent mass greater than 10,000 stars like our sun, the monster cluster is ten times larger than typical young star clusters scattered throughout our Milky Way.
Earth Pictures - Earth From Mars
This is the first image ever taken of Earth from the surface of a planet beyond the Moon. It was taken by the Mars Exploration Rover Spirit one hour before sunrise on the 63rd Martian day, or sol, of its mission. The image is a mosaic of images taken by the rover's navigation camera showing a broad view of the sky, and an image taken by the rover's panoramic camera of Earth. The contrast in the panoramic camera image was increased two times to make Earth easier to see.
Mars August 2009 Close to Earth Email - Learn the Truth About the Email that says Earth Will Be Very Close to Mars in August of 2009
Mars Close to Earth Email August 2009 Is it true? It is possible you may have received this email recently:
Blue Moon
Blue Moon. Once in a blue moon. You have probably heard this expression before. It usually means not very often. But, is there really such a thing as a blue moons? Well, yes, but it's probably not what you may think, and a blue moon is definitely not what it used to be.
Jupiter
Jupiter - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data and Images of Jupiter. Jupiter. Astronomy Guide to Space exploration close to home. Information on our solar system. Jupiter planetary data and graphics.
Science Fair Project Ideas
Astronomy Science Fair Projects Ideas. Take a look at these astronomy science fair projects ideas to see if they can help you come up with your own plan. Remember, these ideas are just a starting point for planning your astronomy science fair projects. You will still need to use the scientific method to completely map out your astronomy science fair projects.
Earth Pictures - Earth - Pacific Ocean
This color image of the Earth was obtained by Galileo at about 6:10 a.m. Pacific Standard Time on Dec. 11, 1990, when the spacecraft was about 1.3 million miles from the planet during the first of two Earth flybys on its way to Jupiter. The color composite used images taken through the red, green and violet filters. South America is near the center of the picture, and the white, sunlit continent of Antarctica is below.
Frequently Asked Questions ...
Browse these Frequently Asked Questions About Space & Astronomy. Learn the answers to Astronomy Questions & Space Questions This feature of our Basics Series; What You Need To Know About Space provides answers to astronomy questions and space questions. Discover the answers to some frequently asked questions about space.
Handle on the Sun
Extreme Ultraviolet Imaging Telescope (EIT) image of a huge, handle-shaped prominence taken on Sept. 14,1999. Taken in the 304 angstrom wavelength, prominences are huge clouds of relatively cool dense plasma suspended in the Sun's hot, thin corona. At times, they can erupt, escaping the Sun's atmosphere.
NASA Spinoffs - Apollo Inventi
Every day, in a variety of ways, American lives are touched by space technology. Since 1976, about 1,400 documented NASA inventions have benefited U.S. industry, improved the quality of life and created jobs for Americans. The Apollo program has helped change the way of life in America, especially in health care. Here are some of the inventions contributed by the Apollo program.
Space Shuttle Challenger Quiz - Try Your Luck Out on The Simple Quiz About the Space Shuttle Challenger Disaster
Space Shuttle Challenger Quiz Try Your Hand at This Simple Quiz About the Space Shuttle Challenger Disaste
The Big Bang Theory
The Big Bang is the cosmological model of the universe which is the best support of all lines of scientific evidence and observation. It is the dominant scientific theory about the origin of the universe. According to the Big BangTheory, the universe began sometime between 10 billion and 20 billion years ago from a cosmic explosion at a single point, and has since been expanded in all directions.
Earth Pictures - Earth - India and Australia
This color image of the Earth was obtained by the Galileo spacecraft on Dec. 11, 1990, when the spacecraft was about 1.5 million miles from the Earth. The color composite used images taken through the red, green and violet filters. India is near the top of the picture, and Australia is to the right of center. The white, sunlit continent of Antarctica is below. Picturesque weather fronts are visible in the South Pacific, lower right.
Astronomy 101 - Final Exam
Free Basic Astronomy course. Astronomy 101 - Pass a simple 20 question quiz to receive your certificate.
Apollo 13
Apollo 13 was the 3rd scheduled lunar launch, carrying Jim Lovell, Fred Haize, & Jack Swigert to the moon. An explosion occurred, endangering the Apollo 13 Lunar Landing mission & astronauts Jim Lovell, Fred Haize, & Jack Swigert, the Apollo 13 space exploration mission became a race for survival. As NASA experts & contractors struggled to come up with solutions, the Apollo 13 astronauts; Jim Lovell, Fred Haize, & Jack Swigert; struggled to survive. The successful failure of space exploration.
Earth Pictures - The Earth and Moon
During its flight, the Galileo spacecraft returned images of the Earth and Moon. Separate images of the Earth and Moon were combined to generate this view. The Galileo spacecraft took the images in 1992 on its way to explore the Jupiter system in 1995-97. The image shows a partial view of the Earth centered on the Pacific Ocean about latitude 20 degrees south.
Hubble Discovers Black Holes in Unexpected Places
Black Holes Pictures Gallery - Hubble Discovers Black Holes in Unexpected Places - These two globular star clusters, M15 and G1, harbor hundreds of thousands of stars. But deep within their dense cores is an unexpected guest: a class of intermediate-sized black holes. Black holes are invisible, but the probing eye of NASA's Hubble Space Telescope found them by measuring the velocities of stars whirling around the crowded cores.
Planet Mercury
Mercury Pictures Gallery - Planet Mercury - Mariner 10's first image of Mercury acquired on March 24, 1974. During its flight, Mariner 10's trajectory brought it behind the lighted hemisphere of Mercury, where this image was taken, in order to acquire important measurements with other instruments. - NASA
Did Galileo Invent
Did Galileo Invent the Telescope? Frequently Asked Questions About Space. Did Galileo Invent the Telescope?
A Handle on the Sun
An enormous magnetic loop of hot gases creates a glowing handle on the Sun. The June 9 'prominence' was caused by explosive instabilities in the Sun's magnetic field.
Earth Pictures - Earth - Moon Conjunction
On December 16, 1992, 8 days after its encounter with Earth, the Galileo spacecraft looked back from a distance of about 6.2 million kilometers (3.9 million miles) to capture this remarkable view of the Moon in orbit about Earth. The composite photograph was constructed from images taken through visible (violet, red) and near-infrared (1.0-micron) filters. The Moon is in the foreground; its orbital path is from left to right.
Space Firsts - Basics
Space Firsts - Space Basics - Firsts In Space exploration - Space Firsts - Basics Series; What You Need To Know About Space. Discover who did what and when in these space firsts. From the first Earthling in space to the first man on the moon.
Earth Pictures - Global View of Earth in the Near-Infrared
This near-infrared photograph of the Earth was taken by the Galileo spacecraft at 6:07 a.m. PST on Dec. 11, 1990, at a range of about 1.32 million miles. The camera used light with a wavelength of 1 micron, which easily penetrates atmospheric hazes and enhances the brightness of land surfaces. South America is prominent near the center; at the top, the East Coast of the United States, including Florida, is visible. The West Coast of Africa is visible on the horizon at right.
Earth Pictures - The Earth-Moon System
Eight days after its final encounter with the Earth, the Galileo spacecraft looked back and captured this remarkable view of the Earth and Moon. The image was taken from a distance of about 6.2 million kilometers (3.9 million miles). - The picture was constructed from images taken through the violet, red, and 1.0-micron infrared filters.
Pluto Picture - Sedna Size Comparisons
The artist's rendition shows the newly discovered planet-like object, dubbed "Sedna," in relation to other bodies in the solar system, including Earth and its Moon; Pluto; and Quaoar, a planetoid beyond Pluto that was until now the largest known object beyond Pluto. The diameter of Sedna is slightly smaller than Pluto's but likely somewhat larger than Quaoar.
Benjamin Banneker Biography
Benjamin Banneker was an African-American astronomer, clockmaker, & publisher who was instrumental in surveying the District of Columbia. Banneker taught himself astronomy & advanced mathematics. He turned his attention to both subjects. His study of astronomy enabled him to make the calculations to predict solar & lunar eclipses, even correctly contradicting experts of the day, & to compile an ephemeris for his Benjamin Banneker's Almanac. He became known as the Sable Astronomer.
Meteoroids
Shooting stars or meteors are bits of material falling through Earth's atmosphere; they are heated to incandescence by the friction of the air. The bright trails as they are coming through the Earth's atmosphere are termed meteors, and these chunks as they are hurtling through space are called meteoroids. Large pieces that do not vaporize completely and reach the surface of the Earth are termed meteorites.
Constellations Pictures - Cassiopeia - Picture of the Constellation Cassiopeia
Cassiopeia, wife of Cepheus, the Ethiopian king of Joppa, and mother of Andromeda. - Genitive: Cassiopeiae Abbreviations: Cas, Cass Right Ascension, (h): 1 Declination, (deg): 60N
Constellations Pictures - Andromeda - Picture of the Constellation Andromeda
Andromeda, daughter of Cepheus and Cassiopeia. - Genitive: Andromedae Abbreviations: And, Andr Right Ascension, (h): 1 Declination, (deg): 40N
Halley's Comet
Using Newton's new Laws of motion, the astronomer, Edmond Halley, made a prediction in 1705. He stated that a comet which had appeared in 1531, 1607 and 1682 would reappear in 1758. Although he was proven to be correct, Halley did not live to see it. However, the comet was later named in his honor. During the 20th century, Halley's Comet appeared in 1910 and 1986. During that most recent visit, five spacecraft from the USSR, Japan, and the European Community journeyed to Comet Halley.
Earth Pictures - Earth - Full Disk View of Africa
This color image of the Earth was obtained by the Galileo spacecraft on Dec. 11, 1990, when the spacecraft was about 1.5 million miles from the Earth. The color composite used images taken through the red, green and violet filters. Africa stretches from the center to the top of the picture with the Arabian Peninsula off to its right. The white, sunlit continent of Antarctica is at the bottom.
Earth
Earth - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data and Images of Earth. Earth. Astronomy Guide to Space exploration close to home. Information on our solar system. Earth planetary data and graphics.
Saturn
Saturn - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data and Images of Saturn. Saturn. Astronomy Guide to Space exploration close to home. Information on our solar system. Saturn planetary data and graphics.
Earth Pictures - Earth - Departing Image by Galileo
This color image of the Earth was taken by the Galileo spacecraft on December 11 as it departed on its 3-year flight to Jupiter, about 2 1/2 days after the second Earth flyby. The distance to Earth is about 1.9 million kilometers (1.2 million miles). Antarctica is visible at the bottom of the image, and dawn is rising over the Pacific Ocean.
Space Music - Space Songs
Space music from the rock era. Discover the best in space music. Top ten rock - pop songs with a space theme including lyrics. These rock - pop songs including lyrics are all dedicated to the space age. Space music for the space enthusiast. Music!
Mercury: Enhanced Color
Mercury Pictures Gallery - Mercury: Enhanced Color - Updated calibration and subsequent mosaicing have led to substantial improvements in the Mariner 10 color image data. - NASA/JPL/Northwestern University
Glossary
Astronomy and Space Online Dictionary and Glossary. An ever growing online dictionary / glossary of space and astronomy definitions. Find the definitions for all your space and astronomy related words in this online dictionary - glossary. Astronomy and Space Online Dictionary and Glossary.
Mars
Discover Mars
Pluto Picture - Pluto Not Yet Explored
Cold, distant, Pluto is the only planet in our Solar System which has not been visited by a spacecraft from Earth. The story goes that the legend "Pluto Not Yet Explored" on a US postal stamp depicting the tiny, mysterious world inspired a JPL employee to develop plans for a Pluto flyby.
Asteroid Information
Asteroids are rocky fragments left over from formation of the solar system about 4.6 billion years ago. Most of these fragments of ancient space rubble can be found orbiting the Sun in a belt between Mars & Jupiter. This region in our solar system, called the Asteroid Belt or Main Belt, probably contains millions of asteroids ranging widely in size from Ceres, which at 940 km in diameter is about one-quarter the diameter of our Moon, to bodies that are less than 1 km across.
Earth Pictures - World Globes, Shaded Relief and Colored Height
These images of the world were generated with data from the Shuttle Radar Topography Mission (SRTM). The SRTM Project has recently released a new global data set called SRTM30, where the original one arcsecond of latitude and longitude resolution (about 30 meters, or 98 feet, at the equator) was reduced to 30 arcseconds (about 928 meters, or 1496 feet.)
Gravitational Pull
Definition: Gravitational Pull; The attraction that one object has for another object due to the invisible force of gravity. The mass of an object affects its gravitational pull. The gravitational pull of the Sun keeps the planets in orbit around it.
Pluto
Pluto - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data and Images of Pluto. Pluto. Astronomy Guide to Space exploration close to home. Information on our solar system. Pluto planetary data and graphics.
Abrasive Collision Black Eye
Hubble Space Telescope Image - An Abrasive Collision Gives One Galaxy a "Black Eye". A collision of two galaxies has left a merged star system with an unusual appearance as well as bizarre internal motions. Messier 64 (M64) has a spectacular dark band of absorbing dust in front of the galaxy's bright nucleus, giving rise to its nicknames of the "Black Eye" or "Evil Eye" galaxy.
10 Things About Earth
Earth, our home planet, is the only planet whose name is not derived from Greek/Roman mythology. In Roman Mythology, the goddess of the Earth was Tellus - the fertile soil, while the Greek goddes was Gaia, terra mater - Mother Earth. The name we use today, Earth, comes from Old English and Germanic.
New Asteroid Threat to Earth
New Asteroid Threat to Earth - Impact Potential in 2014. Although scientists have basically cleared us from any danger from asteroid 2002 NT7, which originally had been reported as an impact hazard for the year 2019, a newer space rock has been spotted. Has been called "an event meriting careful monitoring" by astronomers. If an impact does occur, it could be on March 21, 2014.
Telescopes For Under \$300.00
Everyone has to start somewhere. If you have spent some time observing the sky with your naked eyes and a pair of binoculars, you may be ready to move on up to telescopes. Still, even though you want to have the best, it may not be a great idea to spend a lot of money until you're sure you will get your money's worth. Check here for some great reflectors and refractors. Less expensive telescopes.
Astronaut Costumes for Adults
Want an astronaut costume? From Halloween to costume parties to plays or skits, any time you need a costume, check out these space related costumes ideas for adults. From astronaut costumes to alien costumes ideas.
Guion "Guy" Bluford
Guion "Guy" Bluford - NASA Astronaut - First African American In Space. Guion "Guy" Bluford was born in Philadelphia, Pennsylvania. His mother was a teacher and his father an engineer. The Blufords encouraged all four of their sons to work hard and set their goals high. Guy, became the first African-American in space.
Space and Astronomy For Kids
Space and Astronomy For Kids. Find information, pictures, links, and other space and astronomy for kids resources. Take a Solar System Tour, have fun with the Space and Astronomy Activity Book, watch NASA Television, check out some Sky Maps, browse the Astronomy and Space Glossary, add an Astronomy and Space Computer Desktop Wallpaper, learn NASA Acronyms, join the SETI Team to help find life in the universe. Discover Space and Astronomy For Kids. Space and Astronomy For Kids.
Earth Pictures - Pacific Ocean Surface Winds from QuikScat
This image shows wind speeds and direction in the Pacific Ocean on August 1, 1999, gathered by the Seawinds radar instrument flying onboard the QuikScat satellite. - This image was released in conjunction with:PIA01347. The caption released for these images mostly details the Pacific region. - The intense surface winds of Typhoon Olga, represented by yellow spirals, can be seen moving around South Korea in the China Sea.
Earth Pictures - Atlantic Ocean Surface Winds from QuikScat
This image shows wind speeds and direction in the Atlantic Ocean on August 1, 1999, gathered by the Seawinds radar instrument flying onboard the QuikScat satellite. - This image was released in conjunction with: PIA01346. Please refer to that image for more details about the Pacific region. - The intense surface winds of Typhoon Olga, represented by yellow spirals, can be seen moving around South Korea in the China Sea.
Earth and the Sun
This illustration shows the approximate size of Earth compared to the Sun. The giant coronal mass ejection in the image blasted off the Sun in October 2003. The image was taken by the international SOHO spacecraft.
Hubble Spies Globular Cluster in Neighboring Galaxy
Black Holes Pictures Gallery - Hubble Spies Globular Cluster in Neighboring Galaxy - Hubble Space Telescope has captured a view of a globular cluster called G1, a large, bright ball of light in the center of the photograph consisting of at least 300,000 old stars. - Michael Rich, Kenneth Mighell, James D. Neill (Columbia), Wendy Freedman (Carnegie Obs), and NASA
10 Things About Mercury
Named after the Roman god of commerce, travel and thievery, Mercury is the second smallest planet in the solar system, larger only than Pluto, the most distant planet in our solar system. If Earth were the size of a baseball, Mercury would be the size of a golf ball. Viewed from Mercury, the Sun would look almost three times as large as it does from Earth.
Stars - Quiz on Stars - Try Your Luck Out on The Simple Quiz About Stars. Learn how much you know about stars.
Stars - Quiz on Stars Try Your Hand at This Simple Quiz About Stars Discover What You Know About Star
How Do Rockets Fly?
How Do Rockets Fly? - A Backyard Science Experiment. Watch Newton's third law of Motion in Action. Equipment Needed: Drinking Straw, String, Long Balloon, Transparent Tape, and a Clothespin. As you watch your balloon rocket fly along the string, you are observing Newton's Third Law of Motion; For every action, there is an equal and opposite reaction.
Pluto Picture - Pluto & Charon Eclipse a Triple Star
Occasionally, a planet in our Solar System will pass in front of a bright star. Since stars and planets take up so little space on the sky, such events are quite rare. Two months ago, however, Pluto and its large moon Charon passed in front of a comparatively bright triple star system known as P126. By noting how P126 A dimmed, the event was useful for studying Pluto's relatively unknown atmosphere.
Giant Disk of Cold Gas and Dust Fuels Possible Black Hole at Core of NGC 4261
Black Holes Pictures Gallery - Giant Disk of Cold Gas and Dust Fuels Possible Black Hole at the Core of NGC 4261 - Astronomers using NASA's Hubble Space Telescope (HST) have gotten their best look yet at the disk of material that surrounds and is being pulled into a suspected black hole. - Walter Jaffe/Leiden Observatory, Holland Ford/JHU/STScI, and NASA
Earth Pictures - The Americas and Hurricane Andrew
Image taken on August 25, 1992 by NOAA GOES-7 weather satellite of the Americas and Hurricane Andrew as it makes landfall on the Louisiana coast.
2009 Monthly Sky Guides
2009 Monthly Sky Guides. Learn what is happening in 2009 and what has happened in the past. Discover highlights of the night sky and learn what to look for in the year 2009. Check the appropriate sky guide every month.
10 Things About Venus
Venus whose Greek equivalent was Aphrodite was the Roman goddess of love and beauty. Venus probably got its name from being the brightest object in the sky except for the Sun and the Moon. Venus has always been considered a feminine planet, with many legends and stories concerning its inhabitants. Even one modern doctor says that women are from Venus.
Valentina Tereshkova Biography
The first woman in space was Valentina Tereshkova, cosmonaut. The USSR sent a female cosmonaut, Valentina Tereshkova into space many years before NASA sent astronaut, Sally Ride. This is a biography of Valentina Tereshkova.
Astronomy 101 - History
Early History of Astronomy. The study of our Universe is not new, the history of astronomy shows it to be the oldest science. People have been looking up, trying to explain the universe for as long as there have been people. Here, in lesson 1, we look at the early history of astronomy. We’ll look at ancient astronomers and their contributions to the history of astronomy.
Astronaut Costumes
Astronauts are among the most admired people in the world. So, it's not surprising that many people wish to dress as an astronaut when costumes are required. Whether you are attending a costume party as an astronaut or going Trick or Treating, we have some great astronaut costume ideas for you.
Hubble Uncovers Dust Disk around a Massive Black Hole
Black Holes Pictures Gallery - Hubble Uncovers Dust Disk around a Massive Black Hole - Resembling a gigantic hubcap in space, a 3,700-light-year-wide dust disk encircles a 300-million- solar-mass black hole in the center of the elliptical galaxy NGC 7052. - Roeland P. van der Marel (STScI), Frank C. van den Bosch (Univ. of Washington), and NASA
Ptolemy Biography
Ptolemy (aka Claudius Ptolemaeus, Ptolomaeus, Klaudios Ptolemaios, Ptolemeus) lived in Alexandria, Egypt. We know very little of Ptolemy's life, including his birth and death dates. He was an astronomer, mathematician and geographer. Ptolemy created the Ptolemaic System - Earth Centered Universe.
Why Does The Moon Shine
Why Does The Moon Shine? Frequently Asked Questions About Space - Basics Series; What You Need To Know About Space. Discover the answers to some frequently asked questions about space.
Level 2 & 3 Model Rocket Kits
Model rocketry is a great tool for learning about space exploration and physics. It is also a fun hobby. Blast your own model rockets into space with this fun and exciting hobby. Here, we feature some of the best skill level 2 (two) and 3 (three) model rocket kits. Find the model rocket kit that is right for you.
Feasting Black Hole Blows Bubbles
Black Holes Pictures Gallery - Feasting Black Hole Blows Bubbles - A monstrous black hole's rude table manners include blowing huge bubbles of hot gas into space. At least, that's the gustatory practice followed by the supermassive black hole residing in the hub of the nearby galaxy NGC 4438. Known as a peculiar galaxy because of its unusual shape, NGC 4438 is in the Virgo Cluster, 50 million light-years from Earth. - NASA and Jeffrey Kenney and Elizabeth Yale (Yale University)
Hans Lippershey Biography
Hans Lippershey was born in Wesel (western Germany) around the year 1570. Little is known about his early life, but he eventually moved to Middelburg, the capital of Zeeland, the southwesternmost province of the Netherlands. Hans Lippershey was probably not the first person to experiment with combining lenses to create crude telescopes and binoculars. While others later claimed to have invented the device, it was Lippershey who applied to the government of the Ntherlands for a patent in 1608.
Galileo Galilei
Galileo Galilei - Astronomer. Read about the life and work of Galileo Galilei, perhaps the greatest scientist of all time, who went from genius to heretic and back again. Galileo Galilei, first used telescopes for scientific purposes, refined telescopes beyond being toys, demonstrated key points of gravity, and modernized science. Read the biography of Galileo Galilei.
Ring Around a Suspected Black Hole in Galaxy NGC 4261
The gravitational pull of a suspected super-massive black hole forms a frisbee-like disk of cool gas, at the core of an energetic galaxy. Subsequent Hubble observations of yet another active galaxy (M87) confirmed the reality of monstrous black holes gravitational "sink holes" that trap everything, even light.
Earth Pictures - South Polar Projection of Earth
This view of the Earth shows a wonderfully unique but physically impossible view of the southern hemisphere and Antarctica. While a spacecraft could find itself directly over the Earth's pole, roughly half of the image should be in darkness! This view was created by mosaicing together several images taken by Galileo over a 24 hour period and projecting them as they would be seen from above the pole.
Sputnik 1
Sputnik 1 - First Artificial Satellite In Space. The world was shocked, when on October 4, 1957, the USSR launched the world's first artificial satellite, Sputnik 1. The name Sputnik 1 comes from a Russian word for traveling companion of the world. Sputnik 1 carried a thermometer and two radio transmitters. After 57 days in orbit, Sputnik 1 was destroyed while reentering the atmosphere.
Black Hole
Black Hole - from an ever growing glossary of space and astronomy definitions. Find the definitions for Black Hole and all your space and astronomy related words in this online dictionary - glossary. Black Hole: Astronomy theoretical celestial object, formed when a massive star collapses from its own gravity. A black hole has such a strong pull of gravity that not even light can escape from it.
Black Hole in Galaxy M87 Emits Jet of High-Speed Electrons
Black Holes Pictures Gallery - Black Hole in Galaxy M87 Emits Jet of High-Speed Electrons - Space Telescope Science Institute astronomers and their co-investigators have gained their first glimpse of the mysterious region near a black hole at the heart of a distant galaxy, where a powerful stream of subatomic particles spewing outward at nearly the speed of light is formed into a beam, or jet, that then goes nearly straight for thousands of light-years.
Astronaut Costumes for Kids
Want an astronaut costume idea? From Halloween to costume parties to plays or skits, any time you need costume ideas, check out these space related costumes for kids. From astronaut costumes to alien costumes ideas.
Earth Pictures - SeaWinds Global Coverage with Detail of Hurricane Floyd
The distribution of ocean surface winds over the Atlantic Ocean, based on September 1999 data from NASA's SeaWinds instrument on the Quikscat satellite, shows wind direction (white streamlines) at a resolution of 25 kilometers (15.5 miles), superimposed on the color image indicating wind speed. - Over the ocean, the strong (seen in violet) trade winds blow steadily from the cooler subtropical oceans to warm waters just north of the equator.
February 2008 Monthly Sky Guid
Learn what is happening in February 2008 and what has happened in February in the past. Discover highlights of the night sky and learn what to look for in February 2008.
Astronaut Neil Armstrong participates in simulation of moon's surface
Astronaut Neil A. Armstrong, wearing an Extravehicular Mobility Unit, deploys a lunar surface television camera during lunar surface simulation training in bldg 9, Manned Spacecraft Center. Armstrong is the prime crew commander of the Apollo 11 lunar landing mission.
Asteroid On Collision Cours...
It appears that life may be imitating art. If you watched either of the 1998 movies Deep Impact or Armageddon, you may have an idea of the future that faces Earth.
Cerberus
The large dark area left of center is named Cerberus. The arcuate markings in the upper right are in the Amazonis plains and may be sand drifts. The Elysium volcano, a yellow area north of Cerberus, has several channels radiating from its flanks. The three bright spots, upper left, are volcanoes partially veiled by thin clouds.
Earth Pictures - Home
This image of the Earth is one of 60 frames taken by the Voyager 1 spacecraft on Feb. 14, 1990 from a distance of approximately 4 billion miles and about 32 degrees above the ecliptic plane. - This image the Earth is a mere point of light, a crescent only 0.12 pixel in size. Our planet was caught in the center of one of the scattered light rays resulting from taking the image so close to the sun.
Stonehenge Monument
No one is really sure who built Stonehenge or why it was built. Early theories were that it was constructed by the Druids or even the Romans, but those theories were disproved in the 20th century, when it was shown that construction began on Stonehenge over 2,000 years before Celts, and later Romans, had even arrived in the area. Most people believe that Neolithic peoples of the British Isles started building the Stonehenge monument around 5,000 years ago.
The Sun Quiz - Try Your Luck Out on The Simple Quiz About The Sun
Sun Quiz Try Your Hand at This Simple Quiz About The Su
Lander 2 Site
Visible in the lower right corner of the image is the lander's footpad. The shroud that protected the soil collector head during the lander's descent lies a short distance from the footpad. The rounded rock in the center foreground is about 20 cm (8 in) wide. The angular rock to the left and further back is about 1.5 m (5 ft) across. Notice the two trenches dug in the regolith by the sampler arm.
Mercury's South Pole
Mercury Pictures Gallery - Mercury's South Pole - Mercury's south pole was photographed by one of Mariner 10's TV cameras as the spacecraft made its second close flyby of the planet September 21. The pole is located inside the large crater (180 kilometers, 110 miles) on Mercury's limb (lower center). The crater floor is shadowed and its far rim, illuminated by the sun, appears to de disconnected from the edge of the planet. - NASA/JPL/Northwestern University
Toy Planetariums
You'll have a stellar time learning about our solar system and the stars with these home planetariums. All you need is a dark room and an imaginations (and batteries of course). Help your kids begin their journey into astronomy with some great educational toys.
Dogs in Space
Dogs in Space - This Short History of Soviet Canine Cosmonauts Introduces Dogs in Space. The first Earthling in space blasted off on November 3, 1957. Sputnik 2, the world's second artificial satellite, was launched by the Soviet Union from the Baikonur Cosmodrome. There was a passenger on board and her name was Laika Russian for Barker. Learn more about dogs in space.
Constellations Pictures - Cancer - Picture of the Constellation Cancer
The Crab - Genitive: Cancer Abbreviations: Cnc, Canc Right Ascension, (h): 9 Declination, (deg): 20N
Uranus
Uranus - Pictures and Astronomy Facts - Solar System Planetary Astronomical Data and Images of Uranus. Uranus. Astronomy Guide to Space exploration close to home. Information on our solar system. Uranus planetary data and graphics.
Shield Volcano
Olympus Mons is the largest volcano on Mars. This shield volcano, similar to volcanoes in Hawaii, measures 624 km (374 mi) in diameter by 25 km (16 mi) high. It is 100 times larger than Mauna Loa on Earth. Located on the Tharsis Plateau near the equator, Olympus Mons is bordered by an escarpment. The caldera in the center is 80 km (50 mi) wide and contains multiple circular, overlapping collapse craters created by different volcanic events.
Aristotle Pictures - Aristotle from The School of Athens
A detail from the fresco The School of Athens by Raphael. The events leading to Aristotles departure from the academy are a bit cloudy. Some say that after Plato died in 347 BC, Speusippus assumed the leadership of the Academy. Perhaps Aristotle quit because he disagreed with Speusippus's views, or had hoped to be named Plato's successor, himself. Another theory deals with Aristotle's old friend, Philip of Macedonia.
asteroid
asteroid - from an ever growing glossary of space and astronomy definitions. Find the definitions for asteroid and all your space and astronomy related words in this online dictionary - glossary. a medium-sized rocky object orbiting the Sun; smaller than a planet, larger than a meteoroid. Asteroids show no evidence of an atmosphere or other types of activity associated with comets. Asteroids can be lass that one-mile to almost 600 miles in diameter.
Astronomy Facts
Even though man has studied the heavens for thousands of years, we still know very little about the Universe we live in. And as we continue to learn more, we are consistently amazed, and sometimes confused, by what we learn. Here is a collection of amazing, interesting, and strange facts about our Universe.
Venus in Color
The bluish hue of Venus is an effect of the colorization technique used to enhance subtle contrasts in cloud patterns and indicates that this image was taken through a violet filter. Features in the sulfuric acid clouds near the top of the planet's atmosphere are most prominent in violet and ultraviolet light. This image shows the east to west cloud banding and the brighter polar hoods . The features are embedded in winds that flow from east to west at about 370 kph (230 mph).
Coronal Loops
Extending above the photosphere or visible surface of the Sun , the faint, tenuous solar corona can't be easily seen from Earth, but it is measured to be hundreds of times hotter than the photosphere itself. What makes the solar corona so hot? Astronomers have long sought the source of the corona's heat in magnetic fields which loft monstrous loops of solar plasma above the photosphere.
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