Astronomers identify 1st twin stars doomed to collide in kilonova explosion
Although massive stars usually die with spectacular explosions, a handful fizzle out like dud firecrackers. Astronomers have identified the remnants of one such dud firecracker in SGR 0755-2933, a neutron star about 11,400 light-years from Earth in the southern constellation of Puppis. In new research, scientists say that earlier in its lifetime, this star transferred abnormally high amounts of mass to its binary companion — so much so that it was not left with enough material for an explosive death.
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