Stig Östlund

tisdag, oktober 22, 2013

Shapley Supercluster - A Cosmic Giant


While scanning the sky for the oldest cosmic light, ESA's Planck satellite has captured snapshots of some of the largest objects populating the Universe today: galaxy clusters and superclusters.
 Several hundred galaxies and the huge amounts of gas that permeate them are depicted in this view of the core of the Shapley Supercluster, the largest cosmic structure in the local Universe.
The supercluster was discovered in the 1930s by American astronomer Harlow Shapley, as a remarkable concentration of galaxies in the Centaurus constellation.
Boasting more than 8000 galaxies and with a total mass more than ten million billion times the mass of the Sun, it is the most massive structure within a distance of about a billion light-years from our Milky Way Galaxy.

Bloggarkiv