The supernova SN1181 appeared in the night sky in AD 1181, and its nebula continues to shine. NASA’s Wide-field Infrared Space Explorer captures the nebula in infrared light.

The "new stars" are best seen from the Southern Hemisphere, but people have spotted them from the United States by looking ...

Astronomers have found a leftover 'zombie star' from a supernova that once shone in the night sky a thousand years ago. For six months in 1181, a dying star left a mark in the night sky.

TWO new stars have suddenly appeared in the night sky, caused by some of the most powerful explosions in the universe. Two ...

When a supernova was seen glittering in the night sky for six months in 1181, it was so bright that Chinese and Japanese astronomers recorded it as a “guest star” in the Cassiopeia constellation.

With no sign of a supernova throughout this period, the researchers concluded that roughly 98% of the star's mass collapsed, leaving behind a black hole with about 6.5 solar masses.

(CNN) — For six months in 1181, a dying star left a mark in the night sky. The striking object appeared as bright as Saturn in the vicinity of the constellation Cassiopeia, and historical ...

A new study has described in detail a dying star initially recorded in 1181. The object may belong to a rare class of supernovas that leaves behind a “zombie star.” ...