The United Nations has designed 2009 as the International Year of Astronomy. The Cosmos Portal is working in concert with the “IAU Portal to the Universe” project to provide authoritative and trustworthy information about astronomy and space science, combining scientific review with the power of Web-based collaboration.
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FeaturedArticle
What Is a Dwarf Planet?
What is a dwarf planet? When the final vote on the definition of "planet" was made, and the eight dominant bodies in the solar system were declared (quite rationally) a class separate from the...
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FeaturedBlog Post
Notes from the Astronomy Underground: Unappreciated Topics in Astronomy Part IV
Black Holes. Gamma-ray bursts. The hunt for extrasolar planets. Cosmology and the grandest scales of the cosmos. These are the fields of astronomy with the glitter and sweeping majesty of The Big...
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FeaturedEvent
213th American Astronomical Society Meeting
4-8 January 2009 Long Beach, CA
Latest News
Cassini Begins Transmitting Data From Enceladus Flyby
NASA JPL, Pasadena (August 13, 2008) – Shortly after 9:03 p.m. Pacific Time, the Cassini spacecraft began sending data to Earth following a close flyby of Saturn's moon Enceladus. During closest...
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- Watching a 'New Star' Make the Universe Dusty
- Spitzer Reveals 'No Organics' Zone Around Pinwheel Galaxy
- New Findings Show Diverse, Wet Environments on Ancient Mars
