Description:More than 100-thousand people have applied to take a one-way trip to Mars.
30-thousand Americans have applied to be among the chosen 4 to colonize the Red Planet.
According to the Mars One project website, the first crew’s mission would start in 2022 and cost six billion dollars.
The trip is just one-way. Applicants have to agree to spend the rest of their lives on Mars and no one returns to earth.(1:12)