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 ...

Stand on solid ground and it feels obvious that “down” points toward the center of the planet and “up” leads to the sky. Yet if space stretches in every direction, the idea of something being “beneath ...

It has come to our attention that a handful of people out there are a little puzzled about why flying against Earth’s ...

If you've seen illustrations or models of the solar system, maybe you noticed that all the planets orbit the sun in more or less the same plane, traveling in the same direction. Earth's gravity has a ...

If you’ve seen illustrations or models of the solar system, maybe you noticed that all the planets orbit the Sun in more or less the same plane, traveling in the same direction. But what is above and ...

(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 ...

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. What is below Earth, since space is present in ...