1. Education
Send to a Friend via Email
You can opt-out at any time. Please refer to our privacy policy for contact information.
Carolyn Collins Petersen

Updated Articles and Resources

By Carolyn Collins Petersen

    Updated Articles and Resources
    • Want to Find Life? Study a Sunset! Created: Thursday, May 29, 2014 Updated: Thursday, July 24, 2014
      A look at Titan and how sunsets there help astronomers understand distant planet atmospheres.
    • Water on Mars Created: Friday, April 11, 2014 Updated: Thursday, July 24, 2014
      A look at why planetary scientists are interested in finding water on Mars and other system bodies.
    • The Mars Exploration Rovers Created: Tuesday, April 08, 2014 Updated: Thursday, July 24, 2014
      A quick look back at ten years of Mars exploration by the Mars Exploration Rovers (MER) Spirit and Opportunity.
    • A Black Hole Cannibal at the Heart of the Milky Way Created: Monday, April 07, 2014 Updated: Thursday, July 24, 2014
      Our galaxy's central black hole gives hints about how supermassive black holes grow.
    • Alien Contact: Are Humans Ready? Created: Tuesday, May 06, 2014 Updated: Tuesday, July 22, 2014
      Sending messages to aliens might get an answer. Are we ready?
    • Titan: Saturn's Most "Earth-like" Moon Created: Monday, July 21, 2014 Updated: Tuesday, July 22, 2014
      A look at Titan from the Cassini Mission.
    • Vacation in the Stars! Created: Thursday, July 17, 2014 Updated: Tuesday, July 22, 2014
      Introducing a story about places to visit if you're interested in astronomy and space.
    • Explore a Celestial Triangle Created: Monday, July 14, 2014 Updated: Monday, July 21, 2014
      The Summer Triangle is an easy-to-find destination in the night sky from summer through late autumn.
    • Hubble Measures Distances in the Cosmos Created: Thursday, April 24, 2014 Updated: Monday, July 21, 2014
      A look at measuring distances in the cosmos via Hubble Space Telescope
    • The Amazing Hubble Space Telescope Created: Wednesday, April 16, 2014 Updated: Monday, July 21, 2014
      A look at the Hubble Space Telescope, its instruments, and overall mission.
    • Five Fun Ways to Learn about Astronomy Created: Monday, July 21, 2014 Updated: Monday, July 21, 2014
      A quick look at some ways to start learning astronomy that involve books, software, TV, movies, and a visit to your local planetarium.
    • Skygazing in July Created: Tuesday, July 01, 2014 Updated: Monday, July 21, 2014
      A short guide to stargazing for the month of July 2014, along with pointers to some useful resources for stargazers.
    • The Pale Blue Dot Created: Thursday, July 17, 2014 Updated: Thursday, July 17, 2014
      How our solar system looks from deep space.
    • Space Junk Danger Created: Wednesday, July 02, 2014 Updated: Thursday, July 17, 2014
      Space junk is debris in orbit around Earth and can pose a threat to orbital and ground-based operations.
    • Next Exit: Europa Created: Tuesday, July 15, 2014 Updated: Tuesday, July 15, 2014
      A visit to Europa will help uncover possible abodes for life in its deep oceans.
    • Apollo 11: 45 Years Later Created: Monday, July 14, 2014 Updated: Tuesday, July 15, 2014
      A short retrospective about the Apollo 11 mission and what it means for us 45 years later.
    • Exploring Around Antares Created: Sunday, July 13, 2014 Updated: Sunday, July 13, 2014
      Introducing the star Antares, in the constellation Scorpius.
    • What Were the First Stars Like? Created: Saturday, July 12, 2014 Updated: Saturday, July 12, 2014
      A look at the first stars in the universe and their influence on later generations of stars.
    • Alpha Centauri: Gateway to the Stars Created: Tuesday, July 08, 2014 Updated: Tuesday, July 08, 2014
      A trip to Alpha Centauri. Space / Astronomy.
    • Visiting Vulcan's Star Created: Monday, July 07, 2014 Updated: Monday, July 07, 2014
      A look at the science fiction planet Vulcan and its real-life parent star, 40 Eridani A.
    • Hercules and the Amazing Globular Clusters Created: Saturday, May 17, 2014 Updated: Monday, July 07, 2014
      Start out by finding Hercules and its famous "keystone" shape.
    • Saturn's Moon Titan Created: Tuesday, January 18, 2005 Updated: Thursday, July 03, 2014
      Discovered in 1655 by the Dutch astronomer Christiaan Huygens, Titan is the biggest of the 31 known moons orbiting Saturn. It is a cold world enclosed by a thick, hazy atmosphere impenetrable by te...
    • Explorer 1 Created: Friday, July 09, 2004 Updated: Monday, June 30, 2014
      Explorer 1 was the first satellite launched by the United States when it was sent into space on January 31, 1958. Following the launch of the Soviet Union's Sputnik 1 on October 4, 1957, the U.S. A...
    • Astronauts of Project Mercury Created: Friday, September 17, 2004 Updated: Monday, June 30, 2014
      Astronauts in the early days of the space race were true pioneers. It took the right stuff and more to join the group of astronauts known as the Mercury 7 Astronauts. Discover more about Project Me...
    • Introducing Sky in Google Earth Created: Thursday, August 23, 2007 Updated: Monday, June 30, 2014
      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 wi...
    • Crux: the Most Famous Southern Constellation Created: Thursday, June 26, 2014 Updated: Sunday, June 29, 2014
      A tour of the Southern Hemisphere's most famous constellation: Crux, the Southern Cross.
    • Some Thoughts about Stargazing Created: Saturday, June 28, 2014 Updated: Saturday, June 28, 2014
      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.
    • A Diamond in the Sky? Created: Thursday, June 26, 2014 Updated: Friday, June 27, 2014
      A look at a recent discovery of a cool stellar object that could have crystallized as it cooled.
    • Dark Matter 2014 Created: Thursday, June 26, 2014 Updated: Friday, June 27, 2014
      A look at the latest way to study dark matter: through supercomputer simulations.
    • Stargazing in Scorpius Created: Monday, June 23, 2014 Updated: Friday, June 27, 2014
      This is a beginner's guide to the constellation Scorpius. It is meant to help beginning astronomers find the star pattern and a few of its deep-sky objects.
    • Curious about Planet Mars? Created: Thursday, June 26, 2014 Updated: Friday, June 27, 2014
      A look at the Mars Curiosity Rover's first Mars year on the surface of the Red Planet.
    • Voyager 1 Created: Monday, November 08, 2004 Updated: Friday, June 27, 2014
      Voyager 1 was launched after Voyager 2, but because of a faster route, it exited the asteroid belt earlier than its twin. It began its Jovian imaging mission in April 1978 at a range of 265 million...

    ©2014 About.com. All rights reserved.