Endeavour Crater, winter home of the Opportunity Mars rover

Recent Featured Images

Infrared view of the spiral galaxy IC 342
Earth's atmosphere distorts the Moon as seen from the International Space Statio
Infrared view of starbirth in the vast nebula complex Cygnus X
Artist's concept of a dark storm on the brown dwarf 2MASS 2139

On the Air

Gravitational Waves V
This week on StarDate: Some of the heaviest and fastest objects in the universe send "ripples" through space and time. We'll talk about gravitational waves, and the difficult task of finding them.

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Jan. 26: Gravitational Waves IV

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Jan. 25: Gravitational Waves III

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Jan. 24: Gravitational Waves II

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Jan. 23: Gravitational Waves

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Jan. 22: IC 342

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In Print

cover of 2012 Sky Almanac
Fact & Fallacy: Busting Cosmic Myths

The January/February issue brings you our Sky Almanac 2012, with skywatching tips, events, and charts for the entire year. We'll also debunk a year's worth of astronomical pseudoscience, including the so-called "end of the world" predicted for next December.

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