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Cosmic radiation particle WSJ Crossword Clue

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Cosmic radiation particle
The most common and recent 4-letter answer for "Cosmic radiation particle" is MUON.
The clue refers to a subatomic particle that is part of cosmic radiation. Muons are similar to electrons but with a greater mass, and they are commonly found in cosmic rays that reach Earth's atmosphere.
This clue was last seen in the WSJ Crossword on November 11, 2026.
A muon is an elementary particle similar to an electron, with a negative charge and greater mass.

The clue “Cosmic radiation particle” is a classic crossword staple, frequently appearing in puzzles like the WSJ crossword. For the puzzle dated November 11 2026, the definitive 4-letter answer is: MUON.

Expert Tip: When you’re stuck, try to analyze the structure of the clue itself. Is it a direct definition, a pun, a fill-in-the-blank, or a pop culture reference? Identifying the type of clue you’re dealing with is a key skill for improving your solving speed.