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How did our solar system get its heavy elements?

Merging neutron stars pumped out many of the materials that built our home. Read more >>>

Cosmic conundrum

How fast is the universe expanding?

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Meteorite Kit Giveaway

Win this exclusive kit from My Science Shop & Astronomy Magazine!

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Venus1

Venus reimagined

A new analysis shows many of Venus' roughly 1,600 volcanoes are still active. Read more >>>

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NASA's Twins Study: New results

Spaceflight changes the human body, but only temporarily. Read more >>>

Astronomy Exclusives

Comet 67P, Itokawa Asteroid & Ceres Dwarf Planet.

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Planetary tours

Your guide to the solar system.

Plan your hike >>>

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Take a trip you'll never forget!

With a range of exciting adventures to choose from, you're sure to find a trip that's perfect for you.  Explore trips now >>>
TitanIR

Titan's 4,000 mile band of ice

A surprise feature extends almost halfway around the moon.

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50 years later: Apollo 8

Jim Lovell relives the first Moon trip.

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Martian stargazing

Dark, dusty skies.

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BlackHoleArtists

'It's a haunting thing'

Space artists discuss the first black hole image.

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AstroInsightscometscopy

Sift through the debris of our solar system's formation

Explore our solar system's building blocks and find out everything you need to know about comets and asteroids in this free guide from Astronomy and Celestron. Get it here >>>
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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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Blue Moon lander

Jeff Bezos' Moon shot

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EarlyEarth

Where did Earth's water come from?

Looking beyond asteroids to find the origins of water

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How did our solar system get its heavy elements?

Merging neutron stars pumped out many of the materials that built our home. Read more >>>

PICTURE OF THE DAYsee all »

The greatest nebula

The Eta Carinae Nebula (NGC 3372) is the finest such object visible from Earth. With a diameter of more than 300 light-years, it’s the Milky Way’s largest known star-forming region. NGC 3372 lies some 7,500 light-years away.
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