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,…

3 months ago

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…

3 months ago

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…

4 months ago

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…

7 months ago

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…

7 months ago

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…

10 months ago

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,…

12 months ago

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…

1 year ago

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…

1 year ago

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. …

1 year ago