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Technology

Explosive neutron star collision is still emitting X-rays, puzzling astronomers

Two neutron stars colliding, producing gravitational waves and an enormous, shiny jet. Caltech/LIGO When two neutron stars smashed into each other, about 130 million light-years from Earth, the universe lit up. The collision, between a number of the densest objects within the cosmos, produced gravitational waves and a spattering of fireworks on Aug. 17, 2017. […]