Absolutes in physics gets another punch in the face.

An experiment has challenged the "speed limit" of light.

...Two German physicists claim to have forced light to overcome its own speed limit using the strange phenomenon of quantum tunnelling, in which particles summon up the energy to cross an apparently uncrossable barrier.

Their experiments focused on the travel of microwave photons - energetic packets of light - through two prisms.

When the prisms were moved apart, most photons reflected off the first prism they encountered and were picked up by a detector.

But a few appeared to "tunnel" through a gap separating them as if the prisms were still held together.

Although these photons had travelled a longer distance, they arrived at their detector at the same time as the reflected photons. This suggests that the transit between the two prisms was faster than the speed of light.

http://www.dailymail.co.uk/pages/live/articles/technology/technology.html?in_article_id=475587&in_page_id=1965

This isn't the first time. Scientists working on the Bell Inequality found that some particles seemed to "know" the spin of a twin particle, even if they were both shot in opposite directions at the speed of light. Since the fluctuations in spin were random, the experimenters postulated that communication or connectivity between the two particles must exist, and that this communication would have to travel faster than the speed of light. It's a big jump to say that there is "some communication" that must travel faster than light, but physics at the quantum level is really just a super-advanced guessing game.