Cosmic rays suggest dark matter is a self-annihilating WIMP

Enlarge / AMS aboard the International Space Station. (credit: NASA) What happens when two dark matter particles collide? We don’t know the answer to that question because we don’t know what dark matter is. A whole host of possible particles could constitute dark matter, and some of them allow dark matter to “self-interact.” Here, when two dark matter particles collide, they […]

Scientists Think They Know What’s Behind Those Mysterious Gamma Rays in the Galactic Center

Image: NASA; A. Mellinger/Central Michigan University; T. Linden/University of Chicago Count up all the stuff in a galaxy and you should have a pretty good understanding of how much light is being emitted. But that doesn’t seem to be the case for our own Milky Way. Our galaxy’s got a source of extra gamma rays, […]

Rays player who has made $3 million in his career spends his offseasons as an Uber driver

Chris O’Meara/AP MLB Spring Training is upon us, which for most players means an end to an extended vacation that likely featured little beyond some time on the golf course and in the gym.  For Nick Franklin of the Tampa Bay Rays, however, the end of the offseason also means the end of his side-hustle […]