Imagine a highly advanced spaceship that can go at 99.99 percent the speed of light. Assume that it takes a year to accelerate to get to that speed, and another year to slow back down. It has a crew that, on the voyages between stars, enjoys playing various games as the ship's computer takes over all other duties. Some crew members practice archery, and some play laser tag. Their ship is currently in orbit around our sun, and they are all playing their favorite pasttimes, waiting for an assignment. They get one: the order is to travel to a far away star system. They set out for it. After accelerating to their maximum velocity of 99.99 percent light speed, they all decide to relax and play. Will anything be different? Will the archers find it impossible to fire arrows in the direction they are accelerating, because of the energy necessary to make anything go even very slightly faster than their current speed? Will the laser tag players see light go much slower than it did when they weren't moving? Thanks for any and all help given.