Dr. Varoujan Gorjian explains the mind-boggling expansion of the Universe.
Aug 26, 2009
Visit the W-5 star-forming region with 'Ask an Astronomer'!
Feb 5, 2009
In this 'Ask an Astronomer' episode, Dr. Carolyn Brinkworth fills us in on what the color of the sky has to do with finding life on distant planets.
Dec 22, 2008
In this 'Ask an Astronomer' episode, Dr. Michelle Thaller explains how there can be an interstellar medium in a vacuum.
Oct 23, 2008
This 'Ask an Astronomer' special looks at some of the biggest discoveries from NASA's Spitzer Space Telescope over the last five years.
Aug 25, 2008
Our Sun won't last forever. Dr. Carolyn Brinkworth explains the ramifications for our home planet in this 'Ask an Astronomer' video.
Jul 1, 2008
Dr. Carolyn Brinkworth addresses a famous science fiction scenario in this 'Ask an Astronomer' video.
May 8, 2008
Dr. Varoujan Gorjian gives us the answer to this 'Ask an Astronomer' question.
Apr 10, 2008
Dr. Michelle Thaller answers this question for 'Ask an Astronomer.'
Mar 13, 2008
Dr. Bidushi Bhattacharya helps us understand how astronomers find these tiny space rocks.
Feb 13, 2008
Load more