Astronomers witness galaxy megamerger

https://www.nasa.gov/news/releases/latest/index.html

Peering deep into space—an astounding 90 percent of the way across the observable universe—astronomers have witnessed the beginnings of a gargantuan cosmic pileup, the impending collision of 14 young, starbursting galaxies.
Source: Psys.org
Astronomers witness galaxy megamerger
Psys.org