Yinfo logo

Check out the Y Info channel on DTV 12.3, Comcast 258, FiOS 473
This 24/7 news and information channel features a thought-provoking lineup of regional, national and global programs, including BBC World News, Charlie Rose, Washington Week, Keystone Chronicles and Foreign Exchange. More information »


 



Inner and outer planets

Monday, April 13th, 2009



Earth is percieved as a rocky planet, what are other planets like? Did you know Mars is cold and that outer planets are really gigantic gas envelopes? What about a liquid planet? Could such a planet exist? And what really defines a planet, anyway? Explore these questions and more on this week’s “SkyTalk.”

Credit: NASA and The Hubble Heritage Team (STScl/AURA)

Listen:

Audio clip: Adobe Flash Player (version 9 or above) is required to play this audio clip. Download the latest version here. You also need to have JavaScript enabled in your browser.

Visit the Skytalk web page for more information.


spacer image