'(<a href="http://www.j-archive.com/media/2008-01-31_DJ_02.jpg" target="_blank">I'm astrophysicist Neil deGrasse Tyson.</a>)  We were just getting used to dark matter being 90% of the universe when in 1998 we were hit with this discovery, which is making the universe expand much faster than anyone had expected'
dark energy
20th CENTURY SCIENCE: We were just getting used to dark matter being 90% of the universe when in 1998 we were hit with this discovery, which is making the universe expand much faster than anyone had expected
We were just getting used to dark matter being 90% of the universe when in 1998 we were hit with this discovery, which is making the universe expand much faster than anyone had expected
We were just getting used to dark matter being 90% of the universe when in 1998 we were hit with this discovery, which is making the universe expand much faster than anyone had expected
20th CENTURY SCIENCE
dark energy
20th CENTURY SCIENCE