The Nobel Prize in Physics goes to three astronomers for "discovering that the universe is apparently being blown apart by a mysterious force. . . dark energy":
http://www.nytimes.com/2011/10/05/science/space/05nobel.html
― geeta, Wednesday, 5 October 2011 00:45 (twelve years ago) link
"Apparently". Further developments are always likely. New instruments keep coming on line and new techniques are constantly being developed. Exciting times in astronomy.
― Aimless, Wednesday, 5 October 2011 01:01 (twelve years ago) link