observe

The largest sample of galaxy groups ever detected has been presented by a team of international astronomers using data from…

A glacier in Antarctica is committing “ice piracy” — stealing ice from a neighbour — in a phenomenon that has…

Extreme cosmic events such as colliding black holes or the explosions of stars can cause ripples in spacetime, so-called gravitational…

It’s nearly sunset, and the pre-iftar frenzy is in full force in my suburban Maryland home. I rush to set…

Carbon dioxide has been detected on a planet outside our solar system for the first time. The gas has been…