gravitational waves

Strange gravitational wave echoes may let us probe dark matter

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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

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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

Einstein: A pair of pulsars in a tight embrace have proved his theories right again

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After monitoring a pair of pulsars in tight orbit around one another for 16 years, astronomers conclude that their behaviour is consistent with Einstein’s predictions Space 13 December 2021 By Chen Ly Artistic impression of the double system, where two active pulsars orbit each other in just 147 minutes Michael Kramer/MPIfR Einstein’s famous theory of … Read more