“The faster we go, the closer we approach the speed of light,” George explained again patiently, “and the faster time will roll by on the Earth clock. At our peak velocity, halfway through the voyage, it will be our impression that one year is passing on Earth for every three days spent on the ship. Of course, on Earth, if anyone knew what we’re up to, it would seem that time on the ship slowed down so that each day takes four months to pass.
