Two Merging Stars Destined to Ignite a Vast Supernova Explosion

A newly published study reveals that two massive stars at the heart of the planetary nebula Henize 2-428 should merge in 700 million years, triggering a type Ia supernova event. Astronomers using ESO facilities in combination with telescopes in the Canary Islands have identified two surprisingly massive stars at the heart of the planetary nebula […]
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