One of the two Ares IV astronauts working on the surface of Mars in 2032 when their command module, with John Kelly aboard, is swallowed by a spatial anomaly.
Rose Kumagawa appears in the Voyager episode One Small Step, which opens in October 2032 during the Ares IV mission, one of humanity's early crewed expeditions to Mars.
Kumagawa and her colleague Andrei Novakovich are on the planet while Lieutenant John Kelly remains in orbit aboard the command module. Their radio exchange with him is cut short when a graviton ellipse appears and engulfs his ship, leaving the two of them stranded below until a rescue can reach them.
More than three centuries later Voyager meets the same anomaly in the Delta Quadrant, and Chakotay, Paris and Seven of Nine recover Kelly's logs, in which he speaks of the crewmates he left behind.