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Not-so-sticky situation

Scientists have found that dark matter interacts with itself even less than previously thought

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Gone with the wind

Telescopes link a black-hole “wind” to a galactic gush of star-forming gas

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How Hubble Changed the Cosmos

We celebrate the 25th anniversary of this special space telescope with exclusive interviews, extensive graphics, and much more

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Youthful outburst

NASA satellites catch a “growth spurt” from a newborn protostar

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Stellar solution

APEX observations help unravel mystery of Nova Vulpeculae 1670

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Uwingu Mars

Name a crater ... make an impact!

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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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Light show

NASA's MAVEN detects dust, aurora in martian atmosphere

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Experience a once-in-a-lifetime northern lights tour with Astronomy magazine and TravelQuest International

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The Red Planet

What Happened to the Water on Mars?

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Explosive eruption

Data reveal extent of Moon’s giant volcanic eruption

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Not-so-sticky situation

Scientists have found that dark matter interacts with itself even less than previously thought

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PICTURE OF THE DAYsee all »

The Horsehead Nebula

The Horsehead Nebula (Barnard 33) in the constellation Orion the Hunter is one of the most famous dark nebulae in the sky. Such regions have temperatures only a few degrees above absolute zero. Eventually, the material within such clouds will condense to form stars. (4-inch Takahashi FSQ-106ED refractor with reducer at f/3.6, Canon 50D DSLR, ISO 800, one hundred and nineteen 1-minute exposures, stacked)
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