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Indonesian Islands Eclipse

Explore Bali and witness a total solar eclipse in March 2016 with Astronomy magazine and TravelQuest International

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Extreme energy

A pulsar in M82 beams with the energy of about 10 million Suns

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Uwingu Mars

Name a crater ... make an impact!

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Lunar development

Strong evidence that the Moon’s volcanic activity slowed gradually instead of stopping abruptly a billion years ago

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Astronomy on DVD

Explore Astronomy magazine on DVD!

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Active area

Rosetta captures a region of jet activity the neck of Comet 67P

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A Space Experience

Win a trip for four to the Kennedy Space Center Visitor Complex

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Solar safety

How to Safely Observe the Sun

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Super star

Swift mission observes mega flares from a mini star

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Join Astronomy's Aurora Adventure

Experience a once-in-a-lifetime northern lights tour along the Norwegian coast and interior with Astronomy magazine and TravelQuest International.

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Get started in the hobby!

Find your way around the night sky with our app!

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Water work

Much of our water likely originated as ices from interstellar space

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Orbiter arrival

MAVEN has entered orbit around the Red Planet

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Indonesian Islands Eclipse

Explore Bali and witness a total solar eclipse in March 2016 with Astronomy magazine and TravelQuest International

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PICTURE OF THE DAYsee all »

The Heart Nebula

The Heart Nebula (IC 1805), seen here in the false colors of the Hubble palette, is an emission nebula in the constellation Cassiopeia the Queen. It lies 7,500 light-years away and glows because of the energy emitted by a small cluster of stars at its center. (APM 80/500 at f/6.25, Atik 383L+ CCD camera, Hydrogen-alpha/Oxygen-III/Sulfur-II image with exposures of 390, 420, and 450 minutes, respectively)
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