15 mayo 2015
Scientists have conducted a simulation that explains the collision between two clusters of galaxies. Clusters of galaxies are the biggest objects that exist in the universe. They are collections of hundreds of thousands of galaxies pulled together by gravity. Rare, extreme examples of clusters caught in the act of colliding seem to be challenging the accepted view that dark matter is made up of heavy particles.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/7ZDDSgEILno/150515083408.htm
