Oddly enough, one of them is empty space because it doesn't have mass. There are others, so read below:
4 cosmic phenomena that travel faster than the speed of light http://finance.yahoo.com/news/4-cosmic-phenomena-travel-faster-190300819.html http://finance.yahoo.com/news/4-cosmic-phenomena-travel-faster-190300819.html 4 cosmic phenomena that travel faster than the speed ... http://finance.yahoo.com/news/4-cosmic-phenomena-travel-faster-190300819.html When Albert Einstein first predicted that light travels the same speed everywhere in our... View on finance.yahoo.com http://finance.yahoo.com/news/4-cosmic-phenomena-travel-faster-190300819.html Preview by Yahoo
