Anyone wants to venture an educated guess as what it might be? Dark matter/dark energy related? Something to do with gravity maybe? Heck, let's go full optimistic and say the speed of light can actually be exceeded! 
http://www.space.com/25066-major-astrophysics-discovery-announcement-monday.html
http://www.space.com/25066-major-astrophysics-discovery-announcement-monday.html