Over 200,000 applications were said to have been received by the organization, which aims to “establish human life on Martian soil.”

“We’re extremely appreciative and impressed with the sheer number of people who submitted their applications,” Mars One co-founder Bas Lansdorp was quoted as saying in a press release. “However, the challenge with 200,000 applicants is separating those who we feel are physically and mentally adept to become human ambassadors on Mars from those who are obviously taking the mission much less seriously.”

Those in the former category may want to read a new report regarding the effects of outer space on the human body, however, which states that being in outer space could cause long-term health problems.

The report, which was first published in the New York Times, cites multiple negative effects of outer space on the human body, including the swelling that occurs in the human head - due in part to the fact that humans did not evolve outside of the Earth’s atmosphere.