Astronomy Picture of the Day · March 15, 1999

Happy Face Crater on Mars

The Astronomy Picture of the Day for March 15, 1999 is “Happy Face Crater on Mars,” an image. It is credited to Credit: Malin Space Science Systems, MGS, NASA. The original explanation runs about 90 words.

From the explanation

“Even Mars can put on a happy face. The Martian crater Galle has internal markings reminiscent of a smiley face symbol.”

— APOD editors, March 15, 1999

Read the full explanation on science.nasa.gov

At a glance

Date: March 15, 1999
Type: Image
Credit: Credit: Malin Space Science Systems, MGS, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 90 words

All of March 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: March 15 in other years

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Source

Astronomy Picture of the Day, March 15, 1999 — science.nasa.gov/image-article/apod-1999-march-15-happy-face-crater-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.