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 [email protected]. How do we know the age of the planets and stars?

I'm working on a huge project for my day job right now, and it involves writing a lot of basic material about dark energy. I'm supposed to be brief, but how do you concisely describe dark energy? You ...

Have you ever played hide-and-seek in a new place? It’s much harder than playing at home. You only know the obvious hiding spots: under the bed, in the closet, behind the couch. The trick is trying to ...

Over the next several weeks, astronomers will be looking closely at an asteroid that could be as big as a football field as they try to determine just how likely it is to strike Earth in 2032. Here's ...

Dune. Star Wars. Alien. Science fiction movies love alien worlds, and so do we. But how do scientists find planets outside our solar system in... How do astronomers find distant planets ... if we ...

NASA’s OSIRIS-REx spacecraft flew by Earth on Sept. 24, 2023, dropping off its sample of dust and pebbles gathered from the surface of near-Earth asteroid Bennu. Analysis of this sample will help ...

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 [email protected]. Back in 1969 – more than a half-century ago – ...

Current extraterrestrial life searches primarily focus on life resembling Earth-based life due to limitations in imagining alternative life forms and the need for a starting point in the investigation ...