Scientists have observed for first time the very early stages of a supernova — death of a star — with a massive star ...

Interstellar comet 3I/ATLAS is 'exploding' with activity. See dramatic new images of its growing ion tail and learn how NASA ...

Brecher's image reveals spectacular detail in the spiral arms of the 14,000- light-year wide galaxy, where dense dust lanes ...

The Roman telescope will track 100,000 cosmic explosions, revealing how the early universe expanded and offering new clues ...

Astronomers have for the first time detected a coronal mass ejection from another star, shedding light on worlds orbiting red ...

For the first time, scientists determined the shape of a supernova's shock front as it burst through the surface of a dying ...

For decades, astronomers have suspected that stars beyond our sun could hurl huge amounts of magnetized plasma into their ...

Nearly a century after Pluto’s discovery, astronomers are still searching for mysterious planets beyond Neptune - including a ...