Galaxies Without Dark Matter in astrophotograpy

Galaxies Without Dark Matter Might Form From Collisions

Galaxies without dark matter are rare and were once thought impossible. Find out how a new hypothesis about their formation may explain how all galaxies form and what dark matter is.

Galaxy Formation: Artists' Conception of Wolfe Disk Galaxy

Galaxy Formation: New Wolfe Disk Upends Old Theories

Galaxy Formation in the early Universe was thought to be a chaotic series of collisions. Find out how a newly discovered disk galaxy calls that idea into question. (4:00 min read)