Recent Featured Images

Sirius B, the white-dwarf companion to Sirius, compared to the size of Earth
A January 23, 2012 solar flare
Endeavour Crater, winter home of the Opportunity Mars rover
Infrared view of the spiral galaxy IC 342

On the Air

Planetary Flashes
This week on StarDate: The planet Venus shines as the brilliant “evening star” this week. And it points the way to a faint planetary giant. Join us for this planetary encounter, plus some cracklin’ displays in alien skies.

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Listen to Recent Programs
Feb. 6: Record Breaker

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Feb. 5: Leaving the Ring

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Feb. 4: A Fresh Shower

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Feb. 3: White Dwarfs III

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Feb. 2: White Dwarfs II

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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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