Violent mergers might be robbing galaxies of their star-birthing material
Observations of a violent galactic merger that occurred between 6 and 7 billion years ago could help solve the mystery of how galaxies "die," or stop forming stars.
TroibNews 
Observations of a violent galactic merger that occurred between 6 and 7 billion years ago could help solve the mystery of how galaxies "die," or stop forming stars.
