Was 'Star Wars' Right? Can We Walk On Most Exoplanets?

It's 'Star Wars Day' (May the Fourth), and we're wondering whether the planets depicted in 'The Force Awakens' were actually that far from reality.

May 4, 2016
7:00 AM EDT
Buzz Aldrin carries equipment on the moon in July 1969, during Apollo 11. The astronauts had to adjust quickly to the lighter surface gravity of the moon. | NASA
Artist's impression of an astronaut on Mars. Conveniently, Mars has a friendly surface gravity for Earth-arriving astronauts, but most planets in the solar system do not. | NASA