Universal constants may not be so constant
Really cool. Basically, there are various universal constants we kinda take for granted... like the speed of light in a vacuum and the charge of an electron. However, there's belief that as the universe changed, these constants changed as well, so they're not nearly as constant as we think they are.
http://arstechnica.com/science/news/201 ... really.arsmuch more at the link, obviously.