“"Up and ___!" (catchphrase for a physicist)” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.ATOM is the answer to the New York Times crossword clue “"Up and ___!" (catchphrase for a physicist)”. It was last seen in the puzzle of February 19, 2026, where it runs at 14 Across and fills 4 squares. It crosses 4 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.