“Solar wind particle” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.ION is the answer to the New York Times crossword clue “Solar wind particle”. It was last seen in the puzzle of May 27, 2025, where it runs at 45 Down and fills 3 squares. It crosses 3 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.