Episode 50: The Death of Spirals with Kat Griffiths
Podcast: Play in new window | Download Oh man. Galaxies are totally amazing. why are there two types of galaxies? Why are they different colours? the answer is simple: elliptical galaxies don't have any baby stars in them. Because all the gas got blown away or melted. Ooops.
Titanium Physicists Episode 50
It's about galazies