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Space/Astronomy: Most Popular Articles

These articles are the most popular over the last month.
10 Brightest Stars in the Milky Way Galaxy
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.
Did You Know There Are 7 Different Types of...
When we think of stars we usually imagine our Sun. But the simple fact is that the Universe is made up of many different types of stars. In fact looking into the heavens most stars look very different, and some aren't really stars at all. So here is a run down of the most common types of stars in the galaxy.
The Big Bang Theory Explained
It was only recently discoverd that the Universe even had a beginning. Now, scientists are trying to solve the mysteries of the early Universe. The leading theory to explain how the Universe came into existence is known as the Big Bang theory. However, there are still many things that the Big Bang theory struggles to explain.
See a Sliver of the Sun!
Want to see a partial solar eclipse? Here's how.
10 Incredible (and Strange!) 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.
Top 10 Largest Stars in the Universe
Stars are immense balls of glowing plasma. Our Sun provides all the light and heat necessary for life to exist on Earth. And while the Sun is large in comparison to Earth, it is absolutely dwarfed by some of the stars that exist outside of our solar system. Following is a list of the 10 largest stars known in our Universe.
Everything You Need to Know About Venus, the...
Venus, the second planet from the Sun, is often referred to as Earth's Sister. While similar in size to Earth, the atmosphere is vastly different.
Discover the 10 Closest Stars to Earth
You can see thousands of stars when you look up at night. Here are the Top 10 Closest Stars to our solar system.
How Did Neil Armstrong Become the First Man on...
It was July 20, 1969 when Neil Armstrong spoke what must be considered the most famous words of the 20th century,
10 Basic Facts About Uranus
Uranus is one of the most interesting objects in the night sky, and is absolutely beautiful to view through a telescope. Here we take a look at the top 10 most interesting facts about Uranus.
Why Time Travel May Actually Be Possible
There have been times when I wish that I could revisit the past. Perhaps to undo a mistake, or to visit a hero of history. Time travel is an often used plot device in many science fiction works, but is there any science behind it? Is it possible to time travel into the past?
10 Things Everyone Should Know 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.
10 Surprising Facts You Should Know 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.
10 Things You Need to Know About Mars
Named for the Roman god of War, Mars probably got this name due to its red color. It is sometimes referred to as the Red Planet. The name of the month March derives from Mars.
Astronomy 101: Introduction to the Basics
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.
Constellations Pictures Gallery
Constellations information. Discover more about each of the 88 modern constellations. Find the names, information, and pictures of the 88 constellations.
When Can We Expect to See Halley's Comet Next?
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.
United States Astronomy Schools - Colleges and...
Guide to colleges and universities in the United States with astronomy degree programs. Learn where you can earn a degree in astronomy or physics with an astronomy track.
How is "Uranus" Pronounced?
The planet Uranus is one of the most beautiful objects in the night sky, especially as viewed through a telescope. Discussion of this object is often met with snickers and laughter because of how it is pronounced. But do people pronounce it correctly, or should it be said a different way?
Is Sex in Space Possible?
It may sound taboo, but one of the most popular questions fielded by astronauts posits the idea of sex in space. Many wonder if it is even possible. Some argue that it must have happened by now, what with all the coed crews journeying to the International Space Station. So is sex in space possible? And, more interestingly, has sex in space ever happened?
Planets, Moons, Comets, and More!
Let's see what's new in the solar system and its many worlds!
Top 7 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.
Challenger Explosion - A NASA Tragedy
When the Challenger explosion occurred, it shocked the nation, started a NASA investigation, and led to many changes in the shuttle program.
What Exactly Is a Moon?
What is a moon? It's a simple question that may, on the surface, have an obvious answer. One has to do little more than look up in the night sky on clear evenings to see an example of such an object. But when it comes to defining these magnificent objects, the answer may not be so clear.
10 Things You May Not Know 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.
Does the U.S. Military Have a Secret Space...
The speculation of several television series, the concept of a secret military shuttle program is intriguing for sure. But is there any truth to it?
An Introduction to the Pioneers and Branches of...
Astronomy, derived from the Greek words for star law, is the scientific study of all objects beyond our world, and the process by which we seek to understand the physical laws and origins of our universe.
6 Things to Know Before Buying a Telescope
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.
More Songs About Space from Pop 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. Page 2.
Should Pluto Be a Planet? Why the Debate...
In 2006 the International Astronomical Union stripped Pluto of its planet-hood, demoting it to dwarf planet status. But the debate has raged on ever since. So should Pluto be a planet, and in the end does it even matter?
What Are the 10 Closest Stars to Earth?
Naturally our Sun is the closest star to Earth. But beyond that most stars seem impossibly far away. But how close are our nearest neighbors. Here we take a look at the ten closest star systems to Earth.
Basic Information about the Sun
The Sun provides energy for life to exist on Earth as well as the gravitational force to keep the planets in orbit. Here you will find basic information.
The Final Frontier Just Got More Interesting
What would a spacecraft say if it could know what its future mission would be? New Horizons tells us its tale of future exploration.
What Are Black Holes?
A favorite phenomenon of science fiction writers, black holes are real objects that play an important role in our Universe. There are different types of black holes, arising from different processes. But they all have one thing in common, they are incredibly dense regions of space that have gravitational fields so strong that not even light can escape their grasp.
How Dr. Mae Jemison Became the First African-Am...
Dr. Mae Jemison was the first African-American female astronaut in Space. Read her brief biography.
Were the Apollo Moon Landings a Hoax?
Over the last several decades the Moon landings of the late 60s and early 70s have garnered much scrutiny. Some have argued that it would have been physically and technologically impossible to land men on the Moon and return them home. Was it all a hoax? I'll discuss the claims of the conspiracy theorists and let you determine for your self if man really landed on the Moon. Did you think of an issue I didn't address? Send me an email and I will be sure to add it.
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.
Top 10 Quotes by Neil Armstrong, the First Man...
Neil Armstrong is unequivocally an American hero. His bravery and skill earned him the honor of the first human to ever set foot on the Moon. As a result Neil Armstrong has been looked to for insight into the human condition as well as commentary on the state of technology and space exploration. Here we look at the top ten Neil Armstrong quotes, to see how he has influenced our nation and world.
Can You Name the Brightest Star in the Sky?
Sirius, also known as the Dog Star, is the brightest star in the sky. It is also the sixth closest star to Earth. Its name comes from the Greek word for scorching. At 8.6 light years, it is also one of the closest stars to our own sun. In 1844, F.W. Bessel used analysis of its motion to determine that it had a companion. This companion was confirmed by observations in 1862 and is now known to be a white dwarf.
How Many Habitable Planets are in the Milky Way...
There are a vast number of stars in the Milky Way galaxy, and recent data suggests that many of them have planets orbiting around them. But how many of these would we expect to be fit for life, and how many of these will actually contain life? The answers are not so simple.
Was the Apollo 13 Space Exploration Mission...
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.
Sound in Space
Is there sound in space? It's a common question, and the answer is often misrepresented in film and television (though producers are getting better at dealing with this issue). Recently, the question has become even more cloudy with the release of CDs from NASA that contain tracks of the different sounds in space. How can this be?
Red Supergiant Stars
The largest stars in the Universe are red supergiants. The creation and evolution of these behemoths is an active area of research among scientists. It is believed that high mass stars eventually evolve into supergiants once they leave the main sequence and that, eventually, they will brilliantly explode in a massive supernova.
Early History of Astronomy: Ancient Astronomers...
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.
Did NASA Really Find Evidence of Life on Titan?
There have been countless media reports recently claiming, with various levels of veracity, that NASA had detected evidence of life on Titan, the largest moon of Saturn. The fact is, simply, that this claim is misleading at best. The truth is not so clear cut. So what does science really say about life on other worlds?
How Do We Stop Asteroids from Destroying Earth?
The threat of a large asteroid or comet colliding with Earth is very real. How will we stop the destruction of Earth? Is there a plan to combat the, potentially, greatest threat to life on Earth?
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.
Orionids Meteor Shower
The last time Halley's comet visited Earth, in 1986, many observers were disappointed because the famous comet was barely visible to the naked eye. Comet Halley isn't officially scheduled to visit Earth again until 2061 when it swings through the inner solar system on its 76-year orbit, but fans of Halley can see bits and pieces of the comet each year during the annual Orionids meteor shower. Orionids Meteor Shower - See Remnants of Halley's Comet In the Orionids Meteor Shower
Solar System Tour - Visit Our Galactic...
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.
Could a Gamma-ray Burst Destroy Life on Earth?
Gamma-ray Bursts (GRBs) are the most powerful events in the Universe. Despite being far, far away in distant galaxies, their radiation is detected - in significant quantities - here on Earth. This begs the question, could a GRB destroy life on Earth, particularly if it happened nearby?
Microwave Radiation
The microwave band is actually a subset of the broader radio band. But when the term
Astronomy 101 - Final Exam
Free Basic Astronomy course. Astronomy 101 - Pass a simple 20 question quiz to receive your certificate.
Astronomy and Space FAQs
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.
What is the Doppler Effect?
The doppler effect is a phenomenon by which a source's radiation appears to be of higher (blueshifted) or lower (redshifted) energy than it really is. This is caused by the object's motion relative to the observer, and is an important tool in astronomy as we try to understand the Universe.
Space Shuttle Challenger Disaster - A NASA...
The Space Shuttle Challenger disaster, a NASA tragedy. When the space shuttle Challenger exploded killing all aboard, it shocked the nation, started a NASA investigation, and led to many changes in the space shuttle program. Page 2.
Have Aliens Walked Among Us?
For decades man has wondered if beings have another world have walked among us. Is it possible? Or is it simply science fiction? What about the evidence out there, is any of it credible. These are questions that we will explore.
Free Sky Maps - Cities Around The World
You can view free sky maps as seen from various cities around the globe. Your Guide offers this online planetarium which gives you three ways to view the sky and produce free sky maps.
Lunar Eclipses
When the Sun, Earth and Moon are aligned, the Earth will cast a shadow on the Moon creating a phenomenon known as a lunar eclipse. These events have been the subject of mythology and lore, but are readily explained by science.
10 Interesting Facts About the Planet 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.
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. . Page 12.
What Happens to the Human Body in a Vacuum?
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Valentina Tereshkova Biography
The biography of Valentina Tereshkova, the first woman in space. The USSR sent Tereshkova into space many years before NASA sent astronaut Sally Ride.
Matter-Antimatter Power on Star Trek
Aboard the famed Starship Enterprise from the television series Star Trek the propulsion systems are energized by a matter-antimatter power plant. Is such a thing even possible? Could we ever build such a device and use it to power starships?
Exploring the Universe
Man has always been fascinated by the heavens. Even before man knew what was out there he has thought about walking among the stars. Science fiction has revolutionized the way that we think about space exploration. And now that science is beginning to make giant leaps forward, it may not be long before science fiction becomes a reality.
Will the U.S. Really Stop Sending People to...
It's been nearly 40 years since man last set foot on the Moon. Will man return? Will we venture onto more distant worlds? Well NASA has been commissioned with a new vision, and it is one that will take man to worlds beyond our own.
The Basics of Telescopes
Discover the basics of telescope astronomy with this guide. Telescopes come in three basic designs; Refractor, Reflector, and Catadioptric.
11 Things About Jupiter You Probably Didn&rsquo...
Jupiter, the king of the planets, is the largest and heaviest of the planets in our solar system. Perhaps best known for the giant red storm on the surface, Jupiter has many features that may surprise people. So check out our list of the most interesting facts about Jupiter.
The Surprising Origin of the Phrase "Once in a...
We've all heard the phrase. Space / Astronomy.
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 Gallery
Discover Earth Pictures and images in this Earth Pictures Gallery. These Earth pictures are awe inspiring and tell a story about our home planet, Earth.
Why is Getting to Mars so Difficult?
In the late 1960's the United States proved to the world that it was possible to land humans on the Moon. Now, more than forty years later, the technology that took us to our nearest neighbor is quite antiquated. So with all our new advanced technology and innovation, why have we not ventured out beyond our Moon? How difficult is it really to send humans to Mars?
Top 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.
Is There Such a Thing as a Planet Sound?
: Is There Such a Thing as a Planet Sound? You can go on eBay right now (NASA has stopped producing copies
Top 10 Astronomy and Space Weblogs (Blogs)
According to Sheila Ann Manuel Coggins, the About Guide to Weblogs, the definition of a Weblog or Blog
Does Life Exist Elsewhere in Our Galaxy?
The search for life outside our tiny blue rock has consumed the imagination of man for decades. But now, with increasingly advanced technology we may finally be on the verge of discovering where else life may exist in our galaxy. The more we search, however, the more we realize that life may be rather precious after all.
What Can History Teach Us About Future Solar...
NASA is predicting that the coming solar maximum could produce very energetic solar flares and coronal mass ejecta. These events have the potential to cause significant damage to our power grid as well as our orbiting satellites. But how do we know what to expect?
Supernovae
Supernovae (plural form of supernova) are the most violent events in the Universe. The energy emitted during an event can outshine an entire galaxy of billions of stars. The result of a massive star dying, they are fascinating to study, and brilliant to behold.
Earth Pictures - Earth Globe
Earth Globe 11/20/1998 . Space / Astronomy. Page 17.
Interesting Facts About Neptune
Neptune is one of the most interesting objects in our solar system. It shares commonalities with its
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. Page 8.
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. . Page 13.
Does the Moon Rotate?
One of the questions that is often wrongly answered about astronomy pertains to the rotation of the Moon. Specifically, does the moon rotate? The answer is yes, but very slowly. And not only that, but it rotates in a very precise manor as the Earth and Moon interact and cause our natural nightlight to always show us the same face.
The Top 10 Most Massive Stars
The Milky Way Galaxy is filled with hundreds of billions of stars. And the Milky Way is only one of billions of galaxies. Some of these stars are only a fraction of the Sun's mass, while others are equivalent to hundreds of Suns. So what are the 10 most massive stars in the Universe?
The Untold Story of the Teacher Who Died on the...
On January 28, 1986, the world lost one of its greatest resources, Christa McAuliffe, the space shuttle Challenger astronaut teacher.
Proxima Centauri Information
The closest star to our our own solar system will not always be closest, but it will be a long time before that happens. Proxima Centauri is the third star in the Alpha Centauri star system Also known as Alpha Centauri C, it circles its two companions at about 930 billion miles. This orbit takes millions of years, but will eventually carry Proxima far enough that its companions,collectively known as Rigel Kentaurus, will be closer. It is a red dwarf star, much smaller and cooler than the Sun.
Canopus Information
Canopus is the 2nd brightest star in the sky. Its name either comes from an ancient city in northern Egypt or the helmsman for Menelaus. Menelaus was the king of Sparta during the Trojan war. He was brother of Agamemnon & married to Helen, the cause of the war. Canopus is so bright it is used as a reference point for navigation of spacecraft launched on interplanetary missions. It is located in the southern sky and not visible north of Norfolk, VA. Canopus is located in the constellation Carina
Is There a Dark Side of the Moon?
How many time have you used that phrase, dark side of the moon? At times, some people have been of the belief that one side of the moon was always dark, hence the phrase dark side of the moon. Is ther really a dark side of the moon? Read this article to learn the truth about the dark side of the moon.
Learn More about the Cosmos!
A look at a few of the many astronomy books available to help people learn more about the sky.
October's Special Sky Sights
Did you ever see Mars dance in the pale moonlight? Early October is your chance.
Rigil Kentaurus Information
Rigel Kentaurus, also known as Alpha Centauri, is the third brightest star in the sky. Its name literally means foot of the centaur. It is actually a triple star system made up of Alpha Centauri A, Alpha Centauri B, and Alpha Centauri C (also known as Proxima Centauri because it is the closet star to earth). Rigel Kentaurus is located in the constellation Centaurus.
What You Should Know About Meteoroids, or...
Meteors are bits of material falling through Earth's atmosphere. Read more to find out how much meteoric material falls each day.
Who Really Invented the Telescope? (Hint: It...
So, who did invent the telescope? Learn this and other space and astronomy-related frequently asked questions here.
Interesting Facts About Saturn
Saturn is best known for its beautiful and distinctive rings. But this is just one of the amazing facts about the second largest planet in our solar system. So, join me as we run down the most interesting facts about Saturn.
What are Rotation and Revolution?
Rotation and revolution are vital to the study of astronomy, as virtually all heavenly bodies undergo some rotational dynamics of some sort. But what are rotation and revolution exactly, and how are they different?
Stargazing Takes You "Out There"!
Some musings about astronomy as a science and as a pastime, for people who are interested in any aspect of stargazing: from casual observing to serious scholars.
Stars - Quiz on Stars - Try Your Luck Out on...
Stars - Quiz on Stars Try Your Hand at This Simple Quiz About Stars Discover What You Know About Star
Neutron Stars
Supernovae are some of the most dynamic events in the Universe. They create such intense explosions that the light that they emit can outshine entire galaxies. But the compact objects that are left behind are also incredibly powerful as well.
Supermassive Black Holes
Supermassive black holes are some of the most powerful objects in the Universe. These incredible objects hold entire galaxies together and are capable of releasing incredible amounts of energy. Their formation is still a mystery. And some believe they may hold the key to exotic subjects of science fiction like interstellar travel and, possibly, time travel.
Hubble Space Telescope
NASA's first space-based telescope was named for American astronomer Edwin P. Hubble. It was launched in April, 1990 from space shuttle Discovery.
Would You Walk on a Comet?
An icy world beckons. Wouldn't you like to explore its surface?
Betelgeuse Information
Betelgeuse is the tenth brightest star in the sky. It is a red supergiant about 13,000 times brighter than our sun and over 1000 times larger. If you placed Betelgeuse in the place of our sun, it would extend past the orbit of Jupiter. Its name is from the Arabic armpit, and is near the right shoulder of Orion. It is nearing the end of its life and will soon become a supernova. Betelgeuse is in the constellation Orion.
Constellations Pictures - Andromeda - Picture...
Andromeda, daughter of Cepheus and Cassiopeia. - Genitive: Andromedae Abbreviations: And, Andr Right Ascension, (h): 1 Declination, (deg): 40N
Top 8 Telescopes Between 1000 and 5000 Dollars
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. As in most things in life, you typically get what you pay for. If you are looking for better telescopes to start out with, one which might carry you from a beginner to intermediate stargazer, check out these telescopes between $1000.00 and $5000.00.
How Was the Moon Made?
Even the earliest humans were aware of the Moon. Besides the Sun it is the most dominant object in the sky. But how was it made? Where did it come from? These questions puzzled people for millennia. And while not an absolute, we now believe that we know how the Moon was made.
Where Do Comets Come From?
Comets are amazing objects, and can be quite beautiful when viewed through a telescope or, if lucky, the naked eye. But where do this fascinating objects come from?
Top 7 Beginner's Telescopes Between 300.00 and...
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 a telescope. As in most things in life, you typically get what you pay for. If you are looking for a better telescope to start out with, one which might carry you from a beginner to intermediate stargazer, check out these beginner's telescopes ranging from $300 to $500.
Mercury - Thief In The Night - First Planet
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.
Constellations Pictures - Antlia - Picture of...
The Water Pump - Genitive: Antliae Abbreviations: Ant, Antl Right Ascension, (h): 10 Declination, (deg): 35S . Page 2.
Astronomy Science Fair Projects 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.
Mars - The Red Planet - 4th From the Sun
Discover Mars. Space / 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? . Page 18.
Epsilon Eridani Information
Epsilon Eridani (tenth closest star to Earth) is the closest star known to have a planet (Epsilon Eridani b), and an unconfirmed second planet (Epsilon Eridani c). While it is smaller, cooler and slightly less luminous than our own sun, Epsilon Eridani is visible to the naked eye. It is the third closest star that is viewable without a telescope.
Vega Information
Vega is the fifth brightest star in the sky. Its name comes from the Arabic for the swooping eagle. Vega is about 26 light-years from Earth. It is three times the size of the sun and 50 times as luminous. Vega is located in the constellation Lyra.
Jerrie Cobb
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Biography of Giordano Bruno
Giordano Bruno, former Dominican Priest turned philosopher tortured and killed by the Catholic church for espousing a belief that planets existed around other stars in the universe. Bruno's book
The Origin of Our Solar System
There have been no shortage of theories as to how our solar system formed. But it is now believed that the solar system formed from the collapse of a giant solar nebula some 4.5 billion years ago.
Hans Lippershey Biography
Hans Lippershey was probably not the first person to experiment with combining lenses to create crude telescopes, but he applied for a patent in 1608.
Rigel Information
The seventh brightest star in the sky, Rigel's name is from the Arabic for foot, indicating its place in the constellation Orion. It is a blue supergiant and part of a 4 star system, consisting of 2 binary stars. Rigel is approximately 1400 light-years from earth. Rigel is in the constellation Orion.
Earth - Our Home
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.
Visiting The Jet Propulsion Laboratory
Visiting The Jet Propulsion Laboratory. The JPL Public Services Office offers tours free of charge for groups and individuals on an advance reservation basis. You must speak with a Public Services Office representative in order to reserve a tour. Reservations may not be made via e-mail, voice mail or fax.
Arcturus Information
Arcturus is the brightest star in the constellation Bootes, which is one of the oldest constellations in the night sky. It is the 4th-brightest star in the entire sky. Arcturus means bear guard, as it overlooks the constellation Ursa Major. It is an orange giant with a diameter about 10 times that of the sun and a luminosity about 100 times that of the sun. At about 36 light-years, Arcturus is one of the nearest giant stars. Arcturus is located in the constellation Bootes.
Introducing Sky in Google Earth
From the people who brought you Google Earth, there's a new product called Sky, a new feature that enables users of Google Earth to view the sky as seen from planet Earth. This virtual telescope will allow users to float through the skies via Google Earth. Sky will come as a simple click from the Google Earth interface.
A Close Encounter Between a Comet and Mars
Sunday, October 19th, a comet will sweep past Mars. Read all about it and how spacecraft at Mars will be used to study it.
What is a Star?
When you gaze out into the darkness of space you will undoubtedly notice tiny balls of light shimmering in the night. What are these beautiful objects? Well, most of them are stars and there are billions upon billions of them out there waiting to be discovered.
Stargazing Gotta-Haves
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >Stargazing is
Main Sequence Stars
Not all stars are the same; some are smaller, some are larger, some are red, some are blue. While these stars may be different in a variety of ways, they all spend most of their lives on what is known as the main sequence. Here, stars fuse hydrogen into helium to sustain themselves, but when that hydrogen runs out, these stars can lead vastly different lives.
Top 10 Beginner's Telescopes 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.
Top 8 Telescopes Between 500 and 1000 Dollars
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. As in most things in life, you typically get what you pay for. If you are looking for better telescopes to start out with, one which might carry you from a beginner to intermediate stargazer, check out these beginner's telescopes ranging from $500 to $1000.
Christa McAuliffe and Dick Scobee in Shuttle...
Astronaut Francis R. (Dick) Scobee, STS 51-L commander, briefs Payload specialist Sharon Christa McAuliffe about some of the flight systems of the Space Shuttle during a training session in JSC's Shuttle mission simulator. They are on the flight deck with McAuliffe seated at the pilot's station and Scobee at the commander's station. . Page 7.
Astronaut candidate Francis R. (Dick) Scobee &...
Astronaut candidate Francis R. Scobee and T-38 trainer on Ellington runway prior to leaving on training flight.
Sir Isaac Newton
Biography of Sir Isaac Newton, the man who developed the laws of universal gravitation. Page 2.
Astronaut candidates Francis R. Scobee and...
Astronaut candidates Francis R. Scobee and George D. Nelson in T-38 on Ellington runway prior to leaving on training flight. . Page 2.
Blue Supergiants
When massive stars leave the main sequence they usually become red supergiants. However, they will tend to oscillate between various other supergiant stages, including becoming a blue supergiant. In this phase the star is smaller, yet hotter than the other supergiants.
Dwarf Planets
class="no-js" itemscope itemtype="http://schema.org/Article" > itemprop="description" >In 2006 there
Top 10 Astronomy & Space Magazines
Now, stay informed with these top astronomy and space magazines which deal with astronomy & astronomers as well as space exploration from the early days into the future. Discover new space and astronomy magazines to bring you the news that interests you.
Achernar Information
Other Names: Alpha Eridani HR 472 HD 10144 Data: Right Ascension: 01 37 42.9 Declination: -57 14 12 Apparent
Astronomy and Space Timeline
Astronomy and Space History Timeline. The history of astronomy and space exploration timeline.
Capella Information
The sixth brightest star in the sky, Capella's name is from the Latin for little she-goat. Capella is a yellow giant star, like our own sun, but much larger. It is part of a binary star sysem with a red giant star. The two orbit around each other once every 104 days. Capella is approximately 41 light-years from earth. Capella is in the constellation Auriga.
Procyon Information
Procyon is the eighth brightest star night sky. It is a yellow-white star and at 11.4 light years, one of the closer stars to Earth. Its name is from the Greek meaning before the dog, i.e., before the Dog Star, Sirius, the brightest star in the sky. It is a visual binary star. Procyon is in the constellation Canis Minor.
NASA Discovers a New Planet In Our Solar System
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.
Visiting the Johnson Houston Space Center
The Houston Space Center, also known as the Johnson Space Center, is a place where you can experience space in all its drama and excitement.
Radiation
It is a term that seems to be used for many applications: light, nuclear danger, medical imaging and more. So what is radiation exactly?
Constellations Pictures - Apus - Picture of the...
The Crow - Genitive: Apodis Abbreviations: Aps, Apus Right Ascension, (h): 16 Declination, (deg): 75S . Page 3.
Meteorite Hunters
When a meteorite is found, the ANSMET (Antarctic Search for Meteorites) team records its location, size, color, amount of fusion crust, probable type, and anything else that might be important. Some of their tools are similar to those used by the Apollo astronauts to collect samples, and some are the latest high-tech (like Global Positioning Satellite navigation). The team takes great care not to contaminate the meteorites.
Pluto Picture - Pluto Not Yet Explored
Cold, distant, Pluto was the only planet in our Solar System which had not been visited by a spacecraft
luminosity brightness light electromagnetic...
When we see stars in the night sky we are observing the radiation that escaped from their surface hundreds, thousands and perhaps millions of years ago. In order for us to be able to see such distant objects, these stars must emit massive amounts of energy. The measurement of this energy release is the luminosity.
Thermal Radiation
: As matter is heated kinetic energy is imparted to the charged particles that make up the structure
Astronomy, Astrophysics and Astrology
A comparison of the terms astronomy, astrophysics and astrology. Often confused, the differences and similarities are analyzed and discussed.
Georges-Henri Lemaitre Biography
Georges-Henri Lemaitre was born in Charleroi, Belgium on 17 July 1894. Lemaitre studied humanities at a Jesuit school before entering the civil engineering school of the Catholic University of Leuven at the age of 17. Georges-Henri Lemaître is credited with proposing the Big Bang theory of the origin of the universe, although he called it his hypothesis of the primeval atom. He died on the 20th of June 1966.
Hypergiant Stars
While our Sun is of above average mass compared to other stars in our galaxy, it is still quite small compared to the most massive stars around. There are more than a dozen stars known to have masses form than 100 times that of our central star. Most of these stars are classified as hypergiants.
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