There's a galaxy out there literally blowing 'smoke' into the void, and that smoke is actually cooling down to form brand-new stars.
April 6, 2026
Original Paper
Stars Born in the Wind II: Widespread Extra-planar Star Formation in M82's Halo
arXiv · 2604.03230
The Takeaway
Galaxies were thought to only make stars within their main disks, but new observations show stars forming 65,000 light-years away in the halo. The galaxy is essentially exhaling gas so hard that it starts building new suns far outside its own boundaries.
From the abstract
Galaxies evolve in tandem with their environments -- mergers and gas inflows drive galaxy growth while galactic outflows launched by supernovae may seed the galactic environment with gas, metals, and energy, fueling star-formation far from the main bodies of galaxies. The formation histories of young stars in the stellar halos of nearby galaxies can help understand this interplay. We thus present the most detailed map to date of young stars in the stellar halo of M82, a starburst galaxy in the M