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. Astrobitica February 26, 2026 (Last updated: February 26, 2026) 1 minute read The nebula is possibly being produced by a type of unstable star called a Wolf–Rayet star. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: NASA astronaut says his medical issue led to early return from the ISSNext: Phantom Space reclaims former Vector launch technology