Add Yahoo as a preferred source to see more of our stories on Google. Our solar system is mostly arranged along one plane in space, as in this not-to-scale artist's diagram. NASA/JPL, CC BY If you’ve ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

For nearly two centuries, scientists have wondered if Earth’s rotation through its magnetic field could produce electricity. The idea was first tested by Michael Faraday in 1832, but his experiments ...