Author: Maria Temming / Source: Science News

The first observed smashup of two stellar remnants known as neutron stars probably forged the least massive black hole yet discovered, researchers report in the June 1 Astrophysical Journal Letters.
This cosmic collision, observed in August 2017, took the astronomical community by storm and offered insights into the origins of precious metals and the mysterious dark energy that fuels the expansion of the universe (SN: 11/11/17, p. 6). Ever since, astronomers have wondered what became of the two neutron stars once they’d merged.
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