When Japan’s Hitomi satellite trained its X-ray spectrometer on the Perseus Cluster in early 2016, it had just weeks to live.
Shock waves from tiny black holes in the early universe could explain how antimatter became so rare while matter is common.
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, ...
Scientists have just managed to reproduce a nuclear reaction that had never been observed directly before. The experiment ...