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Super star

NASA's Swift satellite has detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star

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Explore Astronomy magazine on DVD!

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October eclipse

Witness the Full Moon venture deep into Earth's shadow

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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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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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Find your way around the night sky with our new app!

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Small but supermassive?

Smallest known galaxy with a supermassive black hole found

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Uwingu Mars

Name a crater ... make an impact!

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Astronomy is available in the app store!

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Solar safety

How to Safely Observe the Sun

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Back to space

NASA chooses Boeing and SpaceX to transport astronauts to the ISS

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Super star

NASA's Swift satellite has detected the strongest, hottest, and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star

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PICTURE OF THE DAYsee all »

A solar halo

This imager reported: “Yesterday at noon, we had a very interesting phenomenon in the sky. As we looked up, there was a big halo around the Sun. I presume it was about 22° away from the Sun. And farther out, we saw another (partial) halo.” (Panasonic Lumix DMC-FH25 camera, hand-held, at f/10, 1/130-second exposure, taken January 25, 2014, at 12 P.M. local time)
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