Some of the universe's most extreme explosions leave behind almost no trace. The original explosion is unseen, but our observations can capture the long-lived echo it leaves behind as the shock front ...
NASA said its Webb telescope has observed the little-studied PMR 1, nicknamed the “Exposed Cranium” nebula.
Space.com on MSN
James Webb Space Telescope performs brain surgery on mysterious 'Exposed Cranium Nebula'
The nebula is possibly being produced by a type of unstable star called a Wolf–Rayet star.
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