Astronomy Picture of the Day · January 5, 1998

Earth's Richat Structure

The Astronomy Picture of the Day for January 5, 1998 is “Earth's Richat Structure,” an image. It is credited to Credit: STS-41G Crew, Space Shuttle Challenger, NASA. The original explanation runs about 108 words.

From the explanation

“What on Earth is that? The Richat Structure in the Sahara Desert of Mauritania is easily visible from space because it is nearly 50 kilometers across.”

— APOD editors, January 5, 1998

Read the full explanation on science.nasa.gov

At a glance

Date: January 5, 1998
Type: Image
Credit: Credit: STS-41G Crew, Space Shuttle Challenger, NASA
Copyright: No copyright notice on the entry. Check the credited institution’s own usage rules before reusing it.
Explanation length: About 108 words

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Source

Astronomy Picture of the Day, January 5, 1998 — science.nasa.gov/image-article/apod-1998-january-05-earths-richat-structure

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.