can anyone answer the question in layman terms? velocity through the universe is unperturbed energy in weight movement. There are no gravity waves. So unless a planet is growing in size its gravity also remains constant. The guy at a constant velocity with the meteor below or not is also going to experience a fixed amount off time dilation. The meteor with artificial gravity feature's property's of gravity and if you accelerated beyond 1g you would experience time dilation slower and slower the faster you went.