The mysterious nature of time

[Ruth]

Fermi Telescope Caps First Year With Glimpse of Space-Time

From the attached webpage

A pair of gamma-ray photons – one possessed of a million times the energy of the other – arrived at virtually the same instant at NASA's orbiting Fermi Gamma-ray Space Telescope, where the Large Area Telescope, for which Stanford's Peter Michelson is principal investigator, detected them after a 7.3 billion year race across the universe. Some proponents of alternatives to Einstein's theory of gravity would have predicted that the more energetic would have interacted with more matter along the way and thus been much farther behind the less energetic one. They were wrong – Einstein wins this round.

http://news.stanford.edu/news/2009/octob...02809.html

Einstein rules! We know so much, yet so little.