Hillas limit - Canada News Beep | NewsBeep.com

As planets and stars travel through the streams of charged particles flowing across space, their magnetic fields act like obstacles; incoming particles are slowed and deflected, forming a boundary called the bow shock; just ahead of this boundary lies the foreshock, a variable region where magnetic conditions can accelerate some particles to nearly the speed of light. Image credit: Ben C. Smith, Johns Hopkins Applied Physics Laboratory.

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Jupiter Accelerates Electrons to Near-Light Speed, Offering Clues to Cosmic Ray Origins

June 11, 2026

The giant planet’s bow shock isn’t just deflecting the solar wind, it’s acting as a powerful particle accelerator,…