In a massive explosion of a black hole ripping apart a star, a dense gas cocoon was found surrounding the explosion, ...

The blast may have been a kilonova — a type of neutron star merger — in the wake of a more traditional supernova.

Scientists have precisely measured two unstable atomic nuclei that play a crucial role in explosive X-ray bursts on neutron stars. The results reveal faster nuclear reactions than previously thought, ...

In this special issue of the Bulletin of the Atomic Scientists, published by SAGE, experts reflect on 2011 and highlight what to look out for in 2012 in the areas of nuclear energy, nuclear weapons, ...

A nuclear winter is a theoretical concept, but if the climate scenario expected to follow a large-scale nuclear war, in which smoke and soot from firestorms block sunlight, came to fruition, global ...

Astronomers have released a rare time-lapse video showing the violent expansion of a dead star over two decades. The footage ...