A puzzling cosmic blast detected in both light and gravitational waves may hint at a previously unseen type of explosion, challenging astronomers to rethink how neutron stars are born and collide.

Our third interstellar visitor that we have detected, comet 3I/ATLAS, has been found to contain molecules that are key for ...

In the vast, quiet theatre of deep space, not many things capture the human imagination like a traveler from another world.

In a strange turn of events, a supernova birthed twin baby neutron stars that merged to make a powerful kilonova.

Scientists watching the nearby Fomalhaut star system have directly seen two protoplanets smash together for the first time. Then, they saw it happen again.