CC0 Usage Conditions ApplyClick for more information. White dwarfs are some of the Universe's most stable stars, lasting for billions of years. A white dwarf can pull matter from a companion star ...

Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old. The event was first signaled by a gamma-ray burst and later confirmed ...

A strange cosmic blast that lit up the sky in two distinct acts is forcing astronomers to rethink how stars live and die. The event, tagged AT2025ulz, appears to be the first known case where a ...