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Cosmos
Learn about our place in the universe.

Venuscloudslife
Life in the clouds of Venus?
Astronomers spy phosphine in the weird atmosphere of Venus, a potential sign of life. Read more >>>
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Last week to enter!

Share a picture of your most treasured meteorite for your chance to win our More Than Just a Rock photo contest. Learn more >>>

SpaceX loses first Starship prototype

The company will move forward with other prototypes.  Read more >>>
Moon Village:
Humanity's first step toward a lunar colony?
Read more >>>
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NASA's Perseverance rover
Equipped with a rock-blasting laser, two microphones, 23 cameras, and even a helicopter, the rover is set to head to the Red Planet.  Read more >>>
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STARMUS VI: 50 years on Mars
In September 2021, Armenia will showcase the world’s great scientific minds and rock star talent in celebration of Mars exploration.  Learn more >>>
NEOWISEobserverschriscook
Comet NEOWISE springs a naked-eye surprise

Comet C/2020 F3 (NEOWISE) has joined the party.  View our Comet NEOWISE photo gallery >>>

Star Atlas
87,000 stars, 1,200 deep-sky objects and 24 high-quality star maps.

Inside star cities

Watch editor David J. Eicher introduce his latest book on galaxies, or order now!

"Mars Underground"

How a group of students sparked a return to the Red Planet. 

Read more >>>

Martian stargazing

Dark, dusty skies.

Watch now >>>

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The hunt for dangerous asteroids continues
More than 100 of Earth's best telescopes have closed due to COVID-19. But key asteroid detection efforts remain online. Read more >>>
tripsslider
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 >>>
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The Degenerate Era

When the last stars die, the cosmos will turn into a drab place, with smoldering stellar remnants fading from sight like cooling embers.

Read more >>>
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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 >>

Sunfilaments
Zooming in on the Sun

New ultra-high-resolution images reveal previously invisible filaments of million-degree plasma threaded through the Sun's atmosphere.  Read more >>>

Astronomy Exclusive
Learn about 36 astronauts who have had a large impact on our history.

Disappearing Moon

Without our satellite, the planet would wobble, dramatically affecting seasons and climate.

Read More >>>

BlackHoleArtists
'It's a haunting thing'

Space artists discuss the first black hole image.

Read more >>

Life in the clouds of Venus?

Astronomers spy phosphine in the weird atmosphere of Venus, a potential sign of life. Read more >>>

PICTURE OF THE DAYsee all »

In the celestial gym

The Dumbbell Nebula, also known as Messier 27, is a planetary nebula in the constellation Vulpecula the Fox. Also called the Apple Core Nebula, this object lies some 1,200 light-years away. It’s relatively bright and a great target for small telescopes.
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