supernova
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,…
Heavier Stars Might not Explode as Supernovae, Just Quietly Implode Into Black Holes
Above a certain mass, large stars don't become supernovae. That limit might be lower than we thought.
Astronomers Locate the Source of High-Energy Cosmic Rays
Using a novel approach, a team of researchers has confirmed that the elusive source of cosmic rays is indeed supernova…
It Turns out There Were Supernovae Exploding all Over, we Just Couldn’t see Them
When the poet Horace said “We are but dust and shadow”, he probably didn’t think that dust itself could create…
From the way These Stars Look, a Supernova is Inevitable
Sometimes loud explosions are easier to deal with when you know they’re coming. They are also easier to watch out…
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…
White Dwarf Measured Before it Exploded as a Supernova
Using isotope measurements of a supernova remnant, astronomers have calculated the core density of a white dwarf before it exploded.
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. …