supernovas

These ultrabright flashes have recently been tracked for days, upending ideas about the cataclysms that create them.

A supernova-like explosion dubbed the Camel appears to be the result of a newborn black hole eating a star from the inside out.

Small black holes were nowhere to be found, leading astronomers to wonder if they didn’t exist at all. Now a series of findings, including a “unicorn” black hole, has raised hopes of solving the decade-long mystery.

Three-dimensional supernova simulations have solved the mystery of why they explode at all.

A recent neutron star merger has defied astronomers’ expectations, leading them to question longstanding ideas about neutron stars and the supernovas that create them. “We have to go back to the drawing board.”

A study challenged the evidence for the mysterious antigravitational force known as dark energy. Then cosmologists shot back.

How do magnetars get so magnetic? A study of stellar explosions shows that the long-accepted theory might be wrong.

A giant star’s death throes may offer the first evidence of a pair-instability supernova, and a glimpse of the first stars in the universe.

Subatomic particles called muons are thought to have streamed through the atmosphere and irradiated megafauna like the monster shark megalodon.