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Instructional Video1:21
Origin stories of Earth and Mars involved massive collisions, not the slow buildup of pebbles Instructional Video
Next Animation Studio

Origin stories of Earth and Mars involved massive collisions, not the slow buildup of pebbles

12th - Higher Ed
Earth and Mars were likely generated by regular collisions between giant Moon-to-Mars-size rocks, rather than tiny pebbles clumping together.
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