V Sagittae’s violent mass transfer hints at an imminent nova—and a future supernova visible from Earth. Binary star systems are fairly common in the universe, as are pairs where one star is a compact ...

Why did they form at that time? Astronomers know from observing distant exploding stars that the size of the universe has ...

Astronomers observed the fading light of supernova SN 2025kg, which followed the fast X-ray transient (FXT) named EP 250108a.

Betelgeuse is a colossal star that shines brilliantly in the constellation Orion, approximately 600 light-years from Earth. Immense and unstable, this red supergiant is in the final stages of its ...

The first double-burst supernova ever observed, SNR 0509, is a historic discovery that reveals how white dwarfs explode in ...

Scientists have for the first time peered inside a dying star as it exploded in a supernova, gaining not just unprecedented views of its layers, but more so, insight into the process of stellar ...

NEW YORK (AP) — Scientists for the first time have spotted the insides of a dying star as it exploded, offering a rare peek into stellar evolution. Stars can live for millions to trillions of years ...

In November 1572, a brilliant new star appeared in the constellation Cassiopeia, shining so brightly that it was visible during the day. Danish astronomer Tycho Brahe carefully documented this ...

When the two stars eventually smash into each other, the supernova explosion would be visible from Earth, even during daytime.

The cataclysmic explosion that spawned the supernova remnant simultaneously gave rise to a superdense pulsar, which was ...