高能粒子撞击地球
2023年12月5日 Energetic Particle Strikes the Earth Illustration Credit: Osaka Metropolitan U./L-INSIGHT, Kyoto U./Ryuunosuke Takeshige Explanation: It was one of the most energetic particles ever known to strike the Earth — but where did it come from? Dubbed Amaterasu after the Shinto sun goddess, this particle, as do all cosmic rays that strike the Earth...