When you gaze up at the night sky, it’s easy to feel as though you're looking into an endless, empty canvas sprinkled with ...

It’s unclear whether science as a discipline—and scientists as people—will ever be able to answer some questions definitively ...

Imagine drifting through space in a place so empty that you wouldn’t see a single star, planet, or galaxy in any direction. This is the Boötes Void, one of the largest known empty regions in the ...

This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields ...