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Tonight's Sky

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The first-ever image of a black hole

Astronomers spent the past two years imaging the seething chaos outside a supermassive black hole. Now, the results are in. Read more >>>

Weird Object: M87

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New Globe!

18 identified and labeled features from the Cassini mission in 2000, and the Juno space probe in 2016.

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Astronomy for kids

Find out what it's like on other planets, learn how far away the stars are, or try a fun, space-themed project from our Astronomy for Kids page!
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Globe Giveaway

Win an exclusive globe from Astronomy and My Science Shop — a $99.95 value!

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Phaethon

New look at a weird, blue rock.

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Caught: Cannonball pulsar escaping the Milky Way

It could travel from the Earth to the Moon in six minutes flat.

50 years later: Apollo 8

Jim Lovell relives the first Moon trip.

Martian stargazing

Dark, dusty skies.

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Sift through the debris of our solar system's formation

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Join us!

On December 5, 2020, join us as we set sail for 15 days aboard our privately chartered cruise ship. Learn more >>

Perfect for Kids

Get 200+ astronomy facts, activities, & fun for kids!

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The Sky This Week

What's up in the night sky?

Could humans live on a super-Earth?

What's the max gravity our bodies can survive?

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Beneath Arizona's vast, clear skies you find some of most exciting astronomical destinations in the world. Learn more >>

The first-ever image of a black hole

Astronomers spent the past two years imaging the seething chaos outside a supermassive black hole. Now, the results are in. Read more >>>

Barnard’s E is a combination of two dark nebulae (Barnard 142 and B143), both cataloged by American astronomer Edward Emerson Barnard. Together they form the first letter of the great scientist’s name.