![International Space Station (ISS) is seen from NASA space shuttle Endeavour after the station and shuttle began their post-undocking relative separation May 29, 2011 in space.](https://cdn.mos.cms.futurecdn.net/2aCnUoHcF2eP2CdWb2pqBJ-320-80.jpg)
Antimatter detected on International Space Station could reveal new physics
Eight years ago, the International Space Station detected weird antimatter particles that challenge our entire understanding of physics. Now, researchers have proposed that mysterious cosmic "fireballs" could help explain the detection.