ESA’s Integral space observatory spotted X-rays emitted from a unusual binary star system
Deep Space
Deep Space
Deep Space
Astronomers detect gravitational waves from merging neutron stars for first time
Before now, the ripples in space-time had only been detected from black-hole mergers
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Monstrous black hole wakes up after 26-year slumber
An enormous black hole has woken up ravenously hungry, offering an exciting opportunity for astronomers