Turbulence Prevents Star Formation In Galaxy Clusters

Galaxy clusters are large clouds of hot gas, seemingly-ideal places to observe gas cooling and condensing into stars. Yet, we don't see that happening. Here's a look at how black holes and turbulence are conspiring to keep galaxy clusters underpopulated with hot new stars. » 11/03/14 12:52am 11/03/14 12:52am

Shockwaves Are Driving This Galaxy To Its Imminent Doom

This galaxy looks like our own Milky Way, except for a pair of spiral arms emerging out of the galactic plane. That one anomaly is enough to radically change the evolution of NGC 4258, as powerful jets are generating shockwaves driving gas right out of the galaxy and slowing star growth to a crawl. » 9/10/14 1:03am 9/10/14 1:03am