There are many worlds and many systems of Universes existing all at the same time, all of them perishable.

— Anaximander 546 BC

APOD

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Astronomy Picture of the Day
Updated: 21 hours 25 min ago

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Thu, 06/13/2024 - 8:00pm

It was the first time ever.


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Thu, 06/13/2024 - 8:00pm

Why is the sky near


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Thu, 06/13/2024 - 8:00pm

Is the Lion Nebula the real ruler of the


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Thu, 06/13/2024 - 8:00pm

What is that light in the sky?


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Pandora's Cluster of Galaxies

Thu, 06/13/2024 - 8:00pm

Pandora's Cluster of Galaxies


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Sharpless 308: The Dolphin Head Nebula

Thu, 06/13/2024 - 8:00pm

Blown by fast winds from a hot, massive star,


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Messier 66 Close Up

Thu, 06/13/2024 - 8:00pm

Big, beautiful


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NGC 4565: Galaxy on Edge

Wed, 06/12/2024 - 4:00pm

Magnificent spiral galaxy


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Tue, 06/11/2024 - 12:00pm

What if you saw your shadow on Mars and it wasn't human?


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Mon, 06/10/2024 - 8:00am

Why does


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NGC 2403 in Camelopardalis

Sun, 06/09/2024 - 4:00am

Magnificent island universe


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Sat, 06/08/2024 - 12:00am

No one, presently, sees the Moon rotate like this.


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Stereo Helene

Sat, 06/08/2024 - 12:00am

Get out your


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The Nebulous Realm of WR 134

Thu, 06/06/2024 - 8:00pm

Made with narrowband filters,


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Wed, 06/05/2024 - 4:00pm

Why does a cloudy moon sometimes appear colorful?


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Tue, 06/04/2024 - 12:00pm

What happens if you ascend this


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Mon, 06/03/2024 - 8:00am

It's back.


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Chamaeleon I Molecular Cloud

Sun, 06/02/2024 - 4:00am

Chamaeleon I Molecular Cloud


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Sat, 06/01/2024 - 12:00am

What's happened to our Sun?


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Manicouagan Impact Crater from Space

Sat, 06/01/2024 - 12:00am

Orbiting 400 kilometers above Quebec, Canada, planet Earth, the


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