“Waiting for him I check behind me, to be sure I haven’t accidentally activated my backup tank of oxygen, and that’s when I notice the universe. The scale is graphically shocking. The colors, too. The incongruity is stupefying: there I… — Chris Hadfield Copy Share Image
Until the 1990s, there were few reliable observations about movement at the scale of the entire universe, which is the only scale dark energy effects. So dark energy could not be seen until we could measure things very, very far… — Adam Riess Copy Share Image
