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 ...

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

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 chronicles from ...

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.” ...

(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 ...

(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 ...

By Jacopo Prisco, CNN (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 ...

By Jacopo Prisco, CNN (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 ...