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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

News & Observing

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MERCURY_CRESCENT_006Friday, June 14 The two inner planets remain companions in the early evening sky all week. Look low ... Read more »
     
    Venus and Regulus conjunction finder chartBright planets adorn both the early evening and predawn skies in July, while our solar system’... Read more »
    Intro to the Sky

    Learn the constellations, explore the Moon, tour the solar system, and much more!

    Astronomy for Kids

    Find out what it's like on other planets. Learn how far away the stars are. Try a fun, space-themed project.

    Urban Skies
    Astronomy columnist Phil Harrington shares tips on how to observe from the city.
    Astronomy Myths

    Check out some of the common myths that revolve around astronomy

    Glossary

    Check out our guide to astronomical lingo

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