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julianbiggs | 14:29 Sat 30th Jun 2007 | Science
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Why are planets round ??
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Avatar Image Lanthanein
At planet scale gravity will pull all matter into the centre of mass. Most planets are in fact (slightly) elliptical probably due to the centrifugal force of thier spin.
17:48 Sat 30th Jun 2007
Avatar Image Lanthanein
Actually, thinking about it gravity at any scale will pull matter into the centre of mass.
17:55 Sat 30th Jun 2007
Avatar Image stevie21
"gravity at any scale will pull matter into the centre of mass"
Asteroids aren't always round.

I'd say a combination of gravity and centrifugal force.
18:18 Sun 01st Jul 2007
Avatar Image kujawski
because they would look silly if they where cubes
14:26 Mon 02nd Jul 2007

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