Gamma-ray bursts are the most luminous explosions in the cosmos. Astronomers think most occur when the core of a massive star runs out of nuclear fuel, collapses under its own …
Read more: A new class of gamma-ray-only pulsars shows that the gamma rays must form in a broader region than the lighthouse-like radio beam. In this animation, the pulsar’s radio …
From NASA Astrophysics and Goddard Space Flight Center. In December 2010, a pair of mismatched stars in the southern constellation Crux whisked past each other at a distance closer than …