Browsing Tag

x-rays

Fritz Zwicky Or Vera Rubin?

According to models and simulations, all galaxies should be embedded in dark matter halos, whose ... densities peak at the galactic centers. On long enough timescales, of perhaps a billion years, a single dark matter…

This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More