Nearly 4.5 million years ago, two enormous, blazing stars swung close to the solar system. They did not touch the sun, but ...

Have you ever tried to catch a frog? Frogs are impossibly quick. They jump around unpredictably in starts and stops and in every possible direction. By the time you catch up to a frog, that frog is ...

NASA's advanced space observatory known as SPHEREx is on its cosmic journey to solve some of the universe's biggest mysteries. The space telescope, which NASA has spent years developing, launched ...

This engine doesn’t power anything in particular except our deeper understanding of thermodynamics as well microscopic processes within our bodies.

When we think about orbits, we usually picture the Earth zooming around the sun. But does the sun just sit there? Or is it on its own journey? I asked my friend Guy Worthey. He’s a space scientist at ...

Right now, the sun is shining through my window. It feels warm on my face. I talked about the sun with Guy Worthey. He’s a professor of astronomy and physics at Washington State University. He told me ...