Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...

And the earth was without form and void, and darkness was upon the face of the deep. Sometimes, if the night is dark and clear enough, you can look up and see the Milky Way in its arc across the sky.

This article was originally featured on The Conversation. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of ...

The Astro101 series will cover some of the most important questions in astronomy. In today’s lesson, we’ll have: How did the solar system form? What is a “planet” and who decided that? Just how much ...