CBS NEWS-- More than 200,000 people have signed up for a mission to Mars. The trip is a one-way ticket only.
The "Mars One Foundation" is narrowing the pool to just four people from Earth to colonize the red planet.
They are planning the mission for 2018 and if all goes as planned, there could be humans on Mars in 2025. The application period is closed and the company plans to notify the people who made it to round two.