Astronomers capture ultra-high-energy collision of dead stars

A distant neutron star merger unleashed one of the most powerful short gamma-ray bursts (GRB) ever seen, according to new observations by ALMA, the Atacama Large Millimeter/submillimeter Cluster in Chile.

Neutron stars are the super-dense stellar cores left after massive stars explode, and when, say, two neutron stars collision, and the result is a dramatic explosion, the light of which is referred to as a kilonova. Release mergers gravitational waves A short burst of gamma rays in two controlled jets shoots in opposite directions into space.

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