A Puzzling Excess of Cosmic Deuterons A long-running experiment aboard the International Space Station has found an unexpected population of cosmic rays made of heavy hydrogen ions.

The #AlphaMagneticSpectrometer #AMS, a long-running experiment aboard the #InternationalSpaceStation has found an unexpected population of #CosmicRays made of heavy #HydrogenIons. #AMS02 #highenergyphysics #physics physics.aps.org/articles/v17...