Astronomy Picture of the Day · January 21, 2004

Adirondack Rock on Mars

The Astronomy Picture of the Day for January 21, 2004 is “Adirondack Rock on Mars,” an image. It is credited to Credit: Mars Exploration Rover Mission , JPL , NASA. The original explanation runs about 120 words.

From the explanation

“Is this a great pyramid on Mars? Actually, the pictured rock dubbed Adirondack has an irregular shape, is only about the size of a football , and has formed by natural processes .”

— APOD editors, January 21, 2004

Read the full explanation on science.nasa.gov

At a glance

Date: January 21, 2004
Type: Image
Credit: Credit: Mars Exploration Rover Mission , JPL , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 120 words

All of January 2004 → · 2004 by month → · Full archive since 1995 →

Topics in this entry

Mars

Topics are matched from words in the title and explanation.

On this day: January 21 in other years

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Source

Astronomy Picture of the Day, January 21, 2004 — science.nasa.gov/image-article/apod-2004-january-21-adirondack-rock-on-mars

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.