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The Black Holes Collection

The discovery, physics, & mergers that contribute to black holes.

Cosmos
Learn about our place in the universe.

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Humans have occupied the ISS for 20 years

Put another way, spaceship Earth hasn't had all its humans onboard for two full decades. Read more >>>

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Infinity & Beyond — Episode 11: Gravitational Waves

Abigail Bollenbach and Astronomy magazine present you with a crash course on gravitational waves. Watch now >>>

Olympus Mons: Mars' massive volcano
Moon Village:
Humanity's first step toward a lunar colony?
Read more >>>
Go__bekli_Tepe
Gobekli Tepe: The world’s first astronomical observatory?
Pseudoscience and genuine archaeological mysteries surround humanity's oldest known temple. Read more >>> 
Star Atlas
Observer's Handbook 2021 is the essential reference 
for everyone who enjoys the night sky.


Inside star cities

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

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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 >>>
"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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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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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

Explore the red planet's 36 greatest features with this flashcard set.

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 >>

Humans have occupied the ISS for 20 years

Put another way, spaceship Earth hasn't had all its humans onboard for two full decades. Read more >>>

PICTURE OF THE DAYsee all »

The first one

The Dumbbell Nebula, also known as Messier 27, is a planetary nebula in the constellation Vulpecula the Fox. It lies 1,230 light-years away and carries the distinction of being the first planetary nebula to be discovered. Charles Messier found it in 1764.
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