Artist's Conception of Early Earth (IMAGE)

Center for Astrophysics | Harvard & Smithsonian

Artist's Conception of Early Earth

Caption

Astronomers have theorized that long-ago asteroid impacts delivered much of the water now filling Earth's oceans, as shown in this artist's conception. If true, the stirring provided by migrating planets may have been essential to bringing those asteroids.

Credit

David A. Aguilar (CfA)

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