Director of the E.A. Milne Centre for Astrophysics and Head of the Department of Physics and Mathematics, University of Hull The planets in our Solar System are heated by the Sun. Here on Earth, we ...

Thanks for asking such an interesting question, Saba. When you talk about planets you're probably thinking of the planets in our solar system - the ones orbiting (circling around) our sun. There are ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Brad Gibson, Director of the E.A. Milne Centre for ...