Tolerance.ca
Director / Editor: Victor Teboul, Ph.D.
Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

I've always wondered: why are the stars, planets and moons round, when comets and asteroids aren't?

By Jonti Horner, Professor (Astrophysics), University of Southern Queensland
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The reason bigger objects in space are round and smaller ones aren't boils down to gravity. And it's the same reason mountains on Earth can only grow to a certain height


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