Science ❯ Astrophysics ❯ Cosmology

Galactic Evolution

Early Universe Energy Dynamics Stellar Clusters Galaxy Interactions Black Hole Feedback Simulations Chemical Composition Dwarf Galaxies Supermassive Black Holes Dead Galaxies

Hubble and Gaia Reveal Milky Way's Earliest Major Merger

The study finds a roughly 500-million-solar-mass dwarf galaxy supplied stars, gas plus dark matter that helped shape the young Milky Way's growth.

Astronomers Measure Cygnus X-1’s ‘Dancing’ Black Hole Jets at 10,000 Suns of Power

Astronomers Find Most Pristine Star Yet From the Large Magellanic Cloud

Gaia Finds Thousands of Solar Twins, Tying the Sun to a Mass Migration Across the Milky Way

ALMA Team Releases Largest Radio Map of the Milky Way’s Core

ALMA Unveils Record 650-Light-Year Mosaic of the Milky Way’s Turbulent Core

JWST Finds Compact Five-Galaxy Merger From 800 Million Years After the Big Bang

Real-Time Black Hole Flare Triggers Ultrafast Wind at 20% Light Speed

AI-Powered Simulation Models the Milky Way Star by Star for the First Time

Supermassive Black Hole Halts Star Formation in Ancient Galaxy

James Webb Telescope Captures Star Formation in the Milky Way's Outer Reaches