At orbital velocity around the Earth, the gamma factor is 1.000000000338. Russian cosmonaut Valery Polyakov spent 438 consecutive days orbiting the Earth on the Mir Space station. If he left a stopwatch running on Earth and took an identical stopwatch running with him on Mir, what would be the difference in elapsed time over the duration of his flight. a 1.3 E2 s b 2.5 E1 s c 3.0 s d 120 s