A physics student at Durham University is in the running to be part of the first human settlement on Mars.
Hannah Earnshaw is in the last 700 candidates, out of 200 thousand applicants, for the 'Mars One' mission.
It is being run by a Dutch company which wants a colony of around 24 people to live on the planet and research it, starting in 2023.
The only catch is it is a one way trip. The company says it has the technology to get people there, but not back.