startswithabang: These Two Galaxies Can’t Both Exist Without Dark Matter“On the one hand, the total amount of starlight we can measure from galaxies tells us information about the masses and populations of the stars inside: if we measure starlight,
tags: Erotic Girls, dark matter,astronomy,astrophysics,science,
from: https://sirsuckme.tumblr.com/post/631875315414761473