Add Yahoo as a preferred source to see more of our stories on Google. In a few billion years, the Milky Way and Andromeda, the nearest spiral galaxy, might collide. Future observers could be treated ...

A team of researchers using the James Webb Space Telescope has produced the most detailed map of dark matter to date.

Physicist Sean Carroll explains how physics, astronomy, philosophy, and classics all help us understand the expanding ...

In the beginning, the Big Bang happened, sending everything in the universe expanding outward and apart, from a dense hot point. Since then, all that matter and energy has continued to move outward, ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Whether the universe will "end" at all is not certain ...

Depending on how you look at it, the universe might not have an "end," after all. This article was originally published at The Conversation. The publication contributed the article to Space.com's ...

(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 ...