#galaxies

The Dark Energy Spectroscopic Instrument has finished a five-year survey that captured more than 47 million galaxies and quasars, producing the most detailed map of the universe so far.

A new Hubble image of IC 486 highlights a barred spiral galaxy 380 million light-years away, where recent star formation and a bright active galactic nucleus coexist in the same luminous structure.

A newly reported galaxy, NGC 1052-DF9, adds to a small but consequential set of systems that appear to exist without dark matter, lending support to the controversial ‘Bullet Dwarf’ collision scenario.

A new study of more than 1 million galaxies and over 8,000 actively growing supermassive black holes points to a simple explanation for the modern slowdown in black hole growth: not enough cold gas.

Astronomers have directly measured superheated gas blasting out of the starburst galaxy M82 at more than 3.2 million kilometers per hour, strengthening the case for a stellar-driven outflow.

NASA and JAXA’s XRISM mission has directly measured the speed of superheated gas blasting out of the starburst galaxy M82, offering fresh evidence about what drives galaxy-scale winds.

A massive international collaboration using the James Webb Space Telescope and ALMA has identified 70 dusty galaxies from the universe's first billion years. These ancient objects appear to have formed stars far earlier than current models predict, potentially forcing a fundamental reassessment of how galaxies evolve.