SciShow Space

How to Kill a Galaxy (2020x45)

Yayınlanma tarihi: Haz 09, 2020

Our Milky Way galaxy is alive and well, producing new stars all the time. But there’s another group of galaxies out there, populated only by venerable red dwarf stars - the young stars are nowhere to be seen. In effect, these galaxies are... dead. How did they die?