SpaceHave black holes hurled half the universe into the wilderness?Billions of years ago, half the universe’s visible matter disappeared. The monstrous culprit might have been unmasked – and with it, the future of our galaxyFeatures
PhysicsGravitational wave hunters gear up to detect extreme black holes The LIGO experiment only recently made the first sighting of gravitational waves, but already the team is preparing for their next feat News