Gamma-Ray Large Area Space Telescope

This sounds really cool. From http://www.msnbc.msn.com/id/24950124/

"By scanning the universe for the most powerful form of radiation known, the Gamma-Ray Large Area Space Telescope could shed light on dark matter, microscopic black holes and other cosmic enigmas."

Also:

"For example, GLAST could help find dark matter, the as yet unseen substance that could make up 90 percent of all matter in the universe, whose presence scientists infer by its effects on the motion of galaxies. In theory, dark matter particles are their own antiparticles, meaning they destroy each other when they come into contact."

And very cool:

"GLAST could also help see if the speed of light really is constant regardless of wavelength. According to Einstein's theory of relativity, all light travels at the same speed, but some recent theories suggest that extremely high-energy, short-wavelength gamma rays might experience a turbulence of sorts in space-time from virtual matter repeatedly forming and disappearing. As such, their speed might vary slightly over the course of billions of light years, making them arrive just before or after lower-energy rays from the same gamma ray burst."

...."Perhaps most exciting is the possibility that GLAST will find something no one is expecting. This space telescope can peer a range of high-energy gamma rays that is virtually unexplored."