Well, yes; but calling them "exotic-in-the-sense-we-don't-talk-about-them-very-much-even-though-they-pass-by-all-the-time-that-got-created-when-an-actual-space-particle-that-wasn't-that-exotic-like-a-proton-or-helium-atom-hit-the-atmosphere particles called muons" doesn't quite roll off the tongue. :)
They ultimately (and not in the we're all space dust sense, more like 2.2 microseconds ago sense) are caused by interactions with particles from outer space, so calling them space particles, isn't that bad. :) But yeah; it's does elide that aspect of them.
They ultimately (and not in the we're all space dust sense, more like 2.2 microseconds ago sense) are caused by interactions with particles from outer space, so calling them space particles, isn't that bad. :) But yeah; it's does elide that aspect of them.