Astronomy Picture of the Day ·

The Observable Universe

The Astronomy Picture of the Day for November 23, 2025 is “The Observable Universe,” an image. It is credited to Illustration Credit & Licence: Wikipedia , Pablo Carlos Budassi. The original explanation runs about 209 words.

A diagram is shown depicting various parts of the universe that are observable. In the middle are the parts closest to Earth, and around the far edges are parts furthest from Earth. Planets, galaxies, and the CMB are illustrated. Please see
Credit: Illustration Credit & Licence: Wikipedia , Pablo Carlos Budassi Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“How far can you see? Everything you can see, and everything you could possibly see, right now, assuming your eyes could detect all types of radiations around you — is the observable universe .”

— APOD editors, November 23, 2025

Read the full explanation on science.nasa.gov

At a glance

Date
November 23, 2025
Type
Image
Credit
Credit: Illustration Credit & Licence: Wikipedia , Pablo Carlos Budassi
Copyright
No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length
About 209 words

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Topics in this entry

Galaxies

Topics are matched from words in the title and explanation.

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Source

Copy taken Oct 28, 2026, 2:39 AM EDT. The image and explanation belong to their creators. OpenOrbit is not affiliated with or endorsed by NASA.