
Space Health Environment Humans Tech Nature Physics Society Opinion Explainer About Us Our Team Follow Us Daily Newsletter Contact Privacy Privacy Manager Accessibility Terms 2025 ScienceAlert Pty Ltd The Universe's Most Powerful Cosmic Rays May Finally Be Explained Space 31 May 2025 By Mike McRae Composite image of the Tycho supernova . remnant MPIA NASA Calar Alto Observatory Somewhere in our galaxy are engines capable of driving atomic fragments to velocities that come within a whisker of . lightspeed The explosive deaths of stars seems like a natural place to search for sources of these highly energetic cosmic bullets , yet when it comes to the most powerful particles researchers have had their . doubts Numerical simulations by a small international team of physicists may yet save the