Astronomy Picture of the Day ·

HH-222: The Waterfall Nebula

The Astronomy Picture of the Day for December 31, 2025 is “HH-222: The Waterfall Nebula,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Mike Selby). The original explanation runs about 155 words.

A starfield filled with a diffuse red glow has an unusual nebula on the lower left. The nebula has bright red filaments that curve down and appear to be reminiscent of a waterfall on Earth. Please see the explanation for more detailed infor
Credit: Image Credit & Copyright: Mike Selby Copyrighted Shown from science.nasa.gov. Not hosted by OpenOrbit.

From the explanation

“What created the Waterfall Nebula? The origin is still being researched.”

— APOD editors, December 31, 2025

Read the full explanation on science.nasa.gov

At a glance

Date
December 31, 2025
Type
Image
Credit
Credit: Image Credit & Copyright: Mike Selby
Copyright
Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length
About 155 words

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Topics in this entry

OrionNebulae

Topics are matched from words in the title and explanation.

On this day: December 31 in other years

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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.