supernova
Hubble Sees a Surviving Companion Star After its Partner Went Supernova
When stars die they’re often not alone, and for the first time astronomers have found a companion to a supernova,…
Even Stars Doomed to Die as Supernovae can Have Planets
90 percent of all exoplanets discovered to date (there are now more than 5000 of them) orbit around stars the…
Supernova Remnant Cassiopeia A is Lopsided
Cassiopeia A is the remnant of a supernova that exploded 11,000 light-years away. The light from the exploding star likely…
Astronomers Watch a Star Die and Then Explode as a Supernova
It's another first for astronomy. For the first time, a team of astronomers have imaged in real-time as a red…
Nearby Supernovae Were Essential to Life on Earth
It's almost impossible to comprehend a supernova explosion's violent, destructive power. An exploding supernova can outshine its host galaxy for…
Quick Action Let Hubble Watch the Earliest Stages of an Unfolding Supernova Detonation
If it weren't for supernova remnants we wouldn't have much knowledge of supernovae themselves. If a supernova explosion is the…
A Black Hole or Neutron Star Fell Into Another Star and Triggered a Supernova
What happens when you slam a neutron star (or black hole, take your pick) into a companion star? A supernova,…
Astronomers saw the Same Supernova Three Times Thanks to Gravitational Lensing. And in Twenty Years They Think They’ll see it one More Time
It is hard for humans to wrap their heads around the fact that there are galaxies so far away that…
Supernova Observed by Astronomers in 1181 Could Have Been a Rare Type 1ax That Leaves Behind a “Zombie Star” Remnant
In 1181 CE, Chinese and Japanese astronomers noticed a "guest star" as bright as Saturn briefly appearing in their night…
Shrapnel From Relatively Recent Supernovae Found in the Earth’s Crust
A Japanese oil exploration company recently dug up some samples from the Pacific Ocean floor and donated them to researchers. …