Strange gravitational wave echoes may let us probe dark matter

When gravitational waves pass over massive objects, they should create an echo that could allow us to examine objects that we can’t otherwise see, including dark matter Space 27 January 2022 By Leah Crane An illustration of gravitational waves Shutterstock The entire universe is suffused with gravitational waves, ripples in space-time caused by the motion … Read more

Two black holes merged to form a huge one moving at incredible speeds

Astronomers have long suspected that merging black holes can give the resulting larger black hole a massive boost of speed, and have finally spotted this happening Space 11 January 2022 By Leah Crane When a pair of black holes merge, the resulting larger black hole can be sent hurtling away at extraordinary speeds – and … Read more