Low-key supernova marks possible birth of neutron star duo

A massive star lost most of its mass before exploding and creating a neutron star — and a second nearby neutron star might have been the thief. Last year, a tsunami of gravitational waves washed over Earth, heralding the collision of two neutron stars in a far-off galaxy. Such collisions appear to the birthplace of many of the heaviest elements such as gold, platinum, and uranium. Now, an unusual, rapidly brightening supernova might help researchers understand how such neutron star duos arise
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