Giant Impact Formation Of The Moon #2
by Science Photo Library
Title
Giant Impact Formation Of The Moon #2
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Giant impact formation of the Moon. Illustration of five stages (from left to right) in the giant impact theory of the formation of the Moon. This theory says that an object about the size of Mars collided with the Earth around 4.6 billion years ago, soon after they both formed. The impact was side-on, rather than a direct impact. Material from the outer layers of both bodies was thrown into orbit around the Earth, forming a ring. This then coalesced to form the Moon. For a series of illustrations of moon formation theories, see images C047/7687 to C047/7698.
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February 23rd, 2021
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