June 27, 2012 Light, ever so familiar, remains one of the greatest mysteries of science. From Newton to Einstein to the present, there much we know and still don't know.
March 15, 2012 Researchers pushed a short message through nearly 800 feet of solid stone. In theory, some day we may be able to send a message to the other side of the world through the world.
November 21, 2011 The debate hasn't been settled, but there's a new challenge to the claim by one group of scientists that they had measured particles moving faster than was thought possible.
November 18, 2011 Scientists in Italy say they've got more evidence. If so, it challenges Einstein's theory of relativity.