Vicky Kalogera




Ore Gottlieb/CIERA/Northwestern University

Dying stars’ cocoons could be new source of gravitational waves

For the first time ever, the researchers have used state-of-the-art simulations to show that these cocoons can emit gravitational waves. And, unlike gamma-ray burst jets, cocoons’ gravitational waves should be within the frequency band that the Laser Interferometer Gravitational-Wave Observatory …




red supergiant star

Astronomers capture red supergiant’s death throes

For the first time ever, astronomers have imaged in real time the dramatic end to a red supergiant’s life — watching the massive star’s rapid self-destruction and final death throes before collapsing into a type II supernova.

Led by researchers …