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The Conversation USA

Why are planets round?

  • Written by James Webb, Professor and Director, Stocker AstroScience Center for Physics; Stocker AstroScience Center, Florida International University
imageThe Earth is round.Alistair Berg/DigitalVision via Getty Imagesimage

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com.

Why are planets round? – Daniel B., La Crosse, Wisconsin

The ancient Greeks proved over 2,000 years ago that the Earth was...

Read more: Why are planets round?

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