AuthorA simulation of a black holeHotaka Shiokawa/EHT General relativity teaches us that reality is, in some sense, a matter of perspective. Consider how someone who is “falling” into a black…
AuthorWe can detect signals from black holes merging – but could we also pick up traces of more exotic collisions?VICTOR DE SCHWANBERG / SCIENCE PHOTO LIBRARY Gravitational wave signals that…
AuthorGravitational wave detectors use laser beams in tubes that span kilometresThe Virgo Collaboration Gravitational waves that span thousands to billions of miles can be obscured in our detectors by the…
AuthorGravitational waves are vibrations in space-time itselfPeter Jurik/Alamy The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or…
AuthorDid you hear the one about the star that died twice? In 2014, astronomers saw the explosion of the Refsdal supernova. Then, 360 days later, it went bang again. This…
