2 ms·
Cosmic rays are mostly protons, not electrons or positrons. You're mixing up to separate theories in the article.
by pfdietz 6mo ago
Cosmic rays are mostly protons, not electrons or positrons. You're mixing up to separate theories in the article.
- nirse 6mo agoWell, the primary particles that hit the atmosphere are mostly protons. They cause avalanche of secondaires that are varied but mostly muons,
- sidewndr46 6mo agoAs others have mentioned you are correct. But Earth's atmosphere has plenty of all forms of matter. A proton can interact with mostly anything and accelerate it. So you can find high energy everything in low earth orbit.