2023年2月26日
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Saturn's Iapetus: Moon with a Strange Surface

Image Credit: NASA, ESA, JPL, SSI, Cassini Imaging Team

apod.nasa.gov/apod/ap230226.ht

https://apod.nasa.gov/apod/ap230226.html
A different astronomy and space science related image is featured each day, along with a brief explanation.
An unusual two-toned ball is pictured. The ball, Saturn's moon Iapetus, has many craters and an unusual ridge running along its equator that makes it look like a walnut.
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2023年2月26日