Rare black hole and neutron star collisions sighted twice in 10 days
Separate collisions of a neutron star and a black hole are detected in a short space of time. …
In the first collision, which was detected on 5 January 2020, a black hole six-and-a-half times the mass of our Sun crashed into a neutron star that was 1.5 times more massive than our parent star. In the second collision, picked up just 10 days later, a black hole of 10 solar masses merged with a neutron star of two solar masses.
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