The most luminous kilonova candidate to date (short gamma-ray burst 200522A) was detected using the Hubble Space Telescope, ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Back in May, astronomers noted an overwhelming pulse in gamma rays ...

Merger of two neutron stars in the aftermath of a supernova may have been observed for the first time, though questions ...

Kilonova? More like killer-nova. Violent star collisions, called a kilonova, could devastate our planet due to a lethal spew of radiation — namely gamma rays, cosmic rays and x-rays — that are emitted ...

You’ve probably heard of a supernova, when a star reaches the end of its life and explodes in a huge burst of energy. But these aren’t the only dramatic explosions out in space — there are also ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. When two neutron stars sidle up to each other, sparks are bound to ...

Astronomers using the Hubble Space Telescope have spotted the afterglow of an enormous gamma-ray fireball from a merging pair of stars in a galaxy almost 4 billion light years away. The blasts come in ...

This is an artist’s impression of the first confirmed detection of a star system that will one day form a kilonova — the ultra-powerful, gold-producing explosion created by merging neutron stars.

In the second-brightest supernova ever seen, two neutron stars have collided and created a variety of rare heavy elements, many of which are needed for life on Earth. The extraordinarily bright ...

In the world of astrophysics, Aug. 17, 2017, was undoubtedly a red-letter day. First, NASA’s orbiting Fermi satellite identified a burst of high-energy gamma rays. Then, in the minute leading up to ...

These images taken by NASA’s Hubble Space Telescope reveal a new type of stellar explosion produced by the merger of two compact objects: either two neutron stars or a neutron star and a black hole.

A year ago, astronomers discovered a powerful gamma-ray burst (GRB) lasting nearly two minutes, dubbed GRB 211211A. Now, that unusual event is upending the long-standing assumption that longer GRBs ...