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> Moon Formation: ring around the earth

Moon Formation: ring around the earth

author: Ron Miller/Novapix

reference: a-lun99-00017

Image Size 300 DPI: 35 * 35 cm

4.5 billion years ago. After Theia collision and for a short time, the earth is surrounded by a ring of debris. The ring is only temporary, however: it soon begins to coalesce into a solid mass. Only a few years might have been required for it to form into a moon.

Keywords for this photo:

ASTEROID - ASTRONOMY - COMET - EARTH - EARTH FROM SPACE - ERUPTION - FORMATION - ILLUSTRATION - METEORITE - MOON - PLANET - PRECAMBRIAN - PRIMITIVE EARTH - RING - SATELLITE - VOLCANO -