ANOTHER LOOKING GLASS In science
fiction movies like Stargate and Contact, wormholes connect distant points in the universe, allowing people to travel from one spot to another in far less time than the hundreds or millions of years required to make the trip
at the
speed of
light, the greatest conventional velocity.
In the recent science
fiction film Passengers, a huge spaceship flies
at half the
speed of
light on a 120 - year - long journey toward the distant planet Homestead II, where its 5000 passengers are to set up a new home.