Ursa Major III/UNIONS 1: Dwarf Galaxy or Star Cluster?
Researchers investigate whether the Milky Way’s smallest known satellite is a tiny dwarf galaxy or a star cluster.
What’s new with AT 2024wpp, GRB 250702B, and GW231123? Get updates on these three exceptional astrophysical transients in today’s Monthly Roundup.
Researchers search for a connection between short-lived black hole accretion events and neutrinos — elusive, neutral, nearly massless particles.
Astrobites reports on simulations that might help astronomers identify double-detonation supernovae early in their evolution.
How do giant low-surface-brightness galaxies form? New research investigates two galactic specimens to search for clues.
A satellite-rich dwarf galaxy poses a potential problem for current cosmological models.
Investigating a Polluted White Dwarf
JWST spectra illuminate the composition of the debris disk around GD 362, one of the most polluted white dwarfs known.
Astrobites reports on a cosmic drama in action: three active black holes, tangled jets, and fading light.
Astronomers search for a simple organic molecule in Lynds 1544, a cold, dense clump of gas that will one day become a star.