The crew of the lightship Altares are lost in space when the craft is struck by a meteor shower and goes out of control.

The plot of The Day After Tomorrow concerns the interstellar mission of Altares, a science vessel of the future that can travel at the speed of light. From its initial destination of Alpha Centauri, the ship pushes deeper into space; there, her crew of three adults and two children encounter such phenomena as a meteor shower, a red giant and, finally, a black hole, which pulls the ship into another universe.—texasboyy