Astronomy Picture of the Day · October 30, 1999

Mars Rocks, Sojourner Rolls

The Astronomy Picture of the Day for October 30, 1999 is “Mars Rocks, Sojourner Rolls,” an image. It is credited to Credit: IMP Team, JPL, NASA. The original explanation runs about 118 words.

From the explanation

“This sharp color image featuring Mars rock Yogi and the rolling Sojourner robot shows off Yogi’s two-toned surface. Yogi appears to be leaning into the prevailing winds causing some to suggest that its color contrast may be caused by the accumulation of rust colored dust on its windward face.”

— APOD editors, October 30, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: October 30, 1999
Type: Image
Credit: Credit: IMP Team, JPL, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 118 words

All of October 1999 → · 1999 by month → · Full archive since 1995 →

Topics in this entry

Mars

Topics are matched from words in the title and explanation.

On this day: October 30 in other years

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Source

Astronomy Picture of the Day, October 30, 1999 — science.nasa.gov/image-article/apod-1999-october-30-mars-rocks-sojourner-rolls

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.