Astronomy Picture of the Day · December 26, 2025

3I/ATLAS Flyby

The Astronomy Picture of the Day for December 26, 2025 is “3I/ATLAS Flyby,” an image. The picture is copyrighted by its creator (Image Credit & Copyright: Dan Bartlett). The original explanation runs about 130 words.

From the explanation

“8 astronomical units. That’s about 900 light-seconds.”

— APOD editors, December 26, 2025

Read the full explanation on science.nasa.gov

At a glance

Date: December 26, 2025
Type: Image
Credit: Credit: Image Credit & Copyright: Dan Bartlett
Copyright: Copyrighted by the credited creator. Ask the copyright holder before reusing it.
Explanation length: About 130 words

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Source

Astronomy Picture of the Day, December 26, 2025 — science.nasa.gov/image-article/apod-2025-december-26-3i-atlas-flyby

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.