The explosion of a star, called a supernova, is an immensely violent event. It usually involves a star more than eight times the mass of our sun that exhausts its nuclear fuel and undergoes a core collapse,

For years, scientists have suspected that stars can meet their doom by a one-two punch of back-to-back explosions — but they've never seen visual evidence of this happening. That just changed. Astronomers using the Very Large Telescope in Chile have taken the first ever image of such a stellar "double-detonation,

A breathtaking image of a supernova remnant 160,000 light-years from Earth has offered the first direct evidence that white dwarf stars can explode twice in rapid succession. The image reveals two concentric rings,