Moon

in #space • 6 years ago

photo_2020-04-09_19-47-49.jpg

The moon appeared about 4.51 billion years ago, a little later than Earth. The most popular hypothesis is that the Moon was formed from fragments left after the" Giant collision " of Earth and Theia - a planet similar in size to Mars.

#planet #star #nasa
6 years ago in #space by
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