Tag: #galaxies

Astronomers Spot a ‘Ghost Galaxy’ Made Almost Entirely of Dark Matter

Using Hubble, Euclid and Subaru, researchers confirmed an ultra-faint Perseus cluster galaxy whose mass appears to be more than 99% dark matter.

#darkmatter, #astronomy, #hubble, #euclid, #galaxies

Webb Confirms ‘Normal’ Galaxy From Cosmic Dawn, 310 Million Years After the Big Bang

A Webb spectrum pins PAN-z14-1 at redshift 13.53, revealing a large, bright but weak-line galaxy that hints at early diversity.

#jameswebb, #astronomy, #galaxies, #cosmicdawn, #arxiv

Hubble Spots a ‘Failed Galaxy’: Dark-Matter Cloud Cloud‑9 Has Gas but No Stars

Near galaxy M94, Hubble confirms Cloud‑9: a dark‑matter halo filled with hydrogen yet essentially starless, matching long‑predicted ‘failed galaxies.’

#hubble, #darkmatter, #galaxies, #astronomy, #cosmology