The Chandra X-ray Observatory is the darling of high-energy astrophysics. Famed for providing unequaled x-ray views of ...

Astronomers have used a range of telescopes, including Hubble, to watch as particles dance around a neutron star collision ...

The neutron star 4U 1820-30 is one of the fastest spinning bodies in the universe, spinning at 716 times a second and ...

The kilonova briefly mimicked the conditions immediately following the Big Bang, and allowed scientists to confirm the source ...

When the two neutron stars collide, the initial kilonova of exploded neutron star guts is extremely hot, billions of degrees, ...

The outward force from its fusion can no longer counteract the star's powerful gravity, and the star collapses in on itself.

Massive stars about eight times more massive than the sun explode as supernovae at the end of their lives. The explosions, ...

Some stars may transform into black holes without exploding into supernovae. Now, astronomers have finally spotted it as it ...

The temperature of elementary particles has been observed in the radioactive glow following the collision of two neutron stars and the birth of a black hole. This has, for the first time, made it ...

Astrophysicists have, for the first time, measured the temperature of elementary particles in the radioactive afterglow of a neutron star collision, which led to the formation of a black hole. This br ...

it goes kaboom (or maybe it doesn't), ejecting its outer material in a supernova explosion, while the core, no longer ...