Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Astronomy News

Your online destination for news articles on planets, cosmology, NASA, space missions, and more. You’ll also find information on how to observe upcoming visible sky events such as meteor showers, solar and lunar eclipses, key planetary appearances, comets, and asteroids.

December 2003
Icy Mars
Spacecraft observations suggest Mars was once overrun by glaciers.
By Andrew Fazekas
Published: December 28, 2003
XMM-Newton
XMM-Newton's survey of galaxy clusters suggests dark energy doesn't exist.
Amanda Gefter
Published: December 23, 2003
Earth-like Extrasolar Planet
A simulation study provides hope for finding habitable extrasolar planets.
Amanda Gefter
Published: December 22, 2003
NGC 4261 in X Rays
The Chandra X-ray Observatory encounters a string of neutron stars and black holes that appears to mark the site of a galactic merger.
By Andrew Fazekas
Published: December 16, 2003
Pulsar Binary
A pulsar discovery lends hope to scientists' search for gravity waves.
Amanda Gefter
Published: December 15, 2003
Collision in the Edgeworth-Kuiper Belt
A new model proposes Kuiper Belt objects migrated to their present positions under the influence of Neptune.
By Andrew Fazekas
Published: December 8, 2003
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