Oh, would it not be absurd if there was no objective state?
What if the unobserved always waits, insubstantial,
till our eyes give it shape?

— Peter Hammill

APOD

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Astronomy Picture of the Day
Updated: 1 day 2 hours ago

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Tue, 12/30/2025 - 12:00am

What are these little red dots (LRDs)?


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Tue, 12/30/2025 - 12:00am

What's happening in the sky?


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Sun, 12/28/2025 - 8:00pm

Yesterday the Sun reached its southernmost point in planet Earth's sky.


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Sat, 12/27/2025 - 12:00pm

Can you tell that today is a solstice by the tilt of the Earth?


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A Solstice Sun Tattoo

Fri, 12/26/2025 - 8:00am

A Solstice Sun Tattoo


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Long Shadows of the Montes Caucasus

Thu, 12/25/2025 - 8:00am

Long Shadows of the Montes Caucasus


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Jupiter and the Meteors from Gemini

Wed, 12/24/2025 - 4:00am

Jupiter and the Meteors from Gemini


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Tue, 12/23/2025 - 4:00am

Stars are forming in the Soul of the Queen of


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Mon, 12/22/2025 - 12:01am

What’s happening over that tree?


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Mon, 12/22/2025 - 12:01am

Where are all of these meteors coming from?


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Sun, 12/21/2025 - 12:00am

What would it be like to fly over the


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Orion and the Ocean of Storms

Fri, 12/19/2025 - 8:00pm

On December 5, 2022,


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Northern Fox Fires

Thu, 12/18/2025 - 8:00pm

Northern Fox Fires


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Galaxies in the River

Wed, 12/17/2025 - 4:00pm

Large galaxies grow by eating small ones.


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