A new study of two supernova remnants, the debris left behind after stars explode, suggests the explosions came from stellar siblings that once orbited each other. The first star’s detonation sent its binary companion hurtling through space, and then, after traveling for thousands of years, the surv...
NASA’s Fermi Mission Uncovers Possible Sibling Supernova Remnants
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June 18, 2026 •
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NASA
