Supernovae

Exotic Objects, Stars

I’ve read that the gas ejected during supernova explosions glows at millions of degrees; I also have read that gas is tenuous. How would a million-degree gas feel physically? Would I vaporize while flying through such a cloud?

Exotic Objects, Stars

Unprecedented nova images illuminate astronomers’ models for its ejecta

Exotic Objects, Stars

Web Extra: Listen to two supernova songs

Exotic Objects, Stars

A recent study found that a type Ia supernova’s original star could be anywhere from 0.9 to 1.4 times our Sun’s mass. Astronomers use these blasts’ brightnesses to estimate distances, so are those measurements now incorrect?

Cosmology, Exotic Objects, Stars

Most metal-poor star hints at universe’s first supernovae

Exotic Objects, Stars

Pulse of a dead star powers intense gamma rays

Exotic Objects, Stars

Gaia discovers its first supernova

Exotic Objects, Robotic Spaceflight, Stars

Hubble finds supernova companion star after two decades of searching

Exotic Objects, Stars

Web Extra: Cassiopeia A in 3-D

Exotic Objects, Robotic Spaceflight, Stars

Chandra Observatory searches for trigger of nearby supernova

Exotic Objects, Stars

White dwarfs crashing into neutron stars explain loneliest supernovae

Exotic Objects, Stars

Hubble finds supernova star system linked to potential “zombie star”