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The background radiation from cosmic rays increases with altitude, from 0.3 mSv per year for sea-level areas to 1.0 mSv per year for higher-altitude cities, so for best results use this on a plane or in outer space

An important note is that the number of times a letter is highlighted from previous guesses does necessarily indicate the number of times that letter appears in the final hurdle.

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Their premature departure left Chris Williams, who arrived on a Russian Soyuz spacecraft in November 2025, as the only American astronaut at the station for a month until Crew-12 arrived on Feb. 14.