Astronomy Picture of the Day · January 20, 2002

Callisto Full Face

The Astronomy Picture of the Day for January 20, 2002 is “Callisto Full Face,” an image. It is credited to Credit: Galileo Project , Voyager Project , JPL , NASA. The original explanation runs about 126 words.

From the explanation

“Callisto ‘s surface shows its age. While probably formed at the same time as Io , the difference between the surfaces of these two moons of Jupiter could hardly be greater.”

— APOD editors, January 20, 2002

Read the full explanation on science.nasa.gov

At a glance

Date: January 20, 2002
Type: Image
Credit: Credit: Galileo Project , Voyager Project , JPL , NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 126 words

All of January 2002 → · 2002 by month → · Full archive since 1995 →

Topics in this entry

Jupiter

Topics are matched from words in the title and explanation.

On this day: January 20 in other years

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Source

Astronomy Picture of the Day, January 20, 2002 — science.nasa.gov/image-article/apod-2002-january-20-callisto-full-face

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.