Every one of us is unique and important, but at the same time, we’re a microscopic part of something that’s beyond ...

Concentrated hydrogen in the galaxy’s spiral arms can be locked away in zircon crystals, providing startling clues about the Earth’s planetary formation.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A collision between ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show. By Katherine Kornei If our species manages to hang on ...

Objects such as 'Oumuamua, Borisov and recently 3I/ATLAS have opened our eyes to the reality that outsiders regularly visit our solar system — and we're about to start spotting a whole lot more of ...

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 ...

Our galaxy will make for a particularly splendid sight on the dark nights surrounding the new moon phase on Aug. 23. Head away from city lights in late August to see the dense core of the Milky Way ...

Every one of us is unique and important, but at the same time, we’re a microscopic part of something that’s beyond ...