How Dark Matter Went From Crazy Idea To Bombshell Discovery
10/04/2013 07:10
Dina Spector and Robert Ferris | Apr. 6, 2013, 4:30 PM
On Wednesday, an international team of scientists announced they had found the most convincing evidence yet that dark matter exists. Dark matter makes up at least a quarter of our universe. It's the invisible stuff that holds our stars, galaxies, and clusters of galaxies together. The problem is, no one has ever been able to prove that it exists. [Read more] ...