By banning it.
Khaleej Times, via Diogenes: Promoting or being involved in a one-way trip to the Red Planet is prohibited in Islam, a fatwa committee under the General Authority of Islamic Affairs and Endowment in the UAE has ruled.
“Such a one-way journey poses a real risk to life, and that can never be justified in Islam,” the committee said. “There is a possibility that an individual who travels to planet Mars may not be able to remain alive there, and is more vulnerable to death.”
Whoever opts for this “hazardous trip”, the committee said, is likely to perish for no “righteous reason”, and thus will be liable to a “punishment similar to that of suicide in the Hereafter”.
The committee, presided by Professor Dr Farooq Hamada, said: “Protecting life against all possible dangers and keeping it safe is an issue agreed upon by all religions and is clearly stipulated in verse 4/29 of the Holy Quran: Do not kill yourselves or one another. Indeed, Allah is to you ever Merciful.”
Late in April 2013, Mars One, a Dutch company, invited volunteers to fly and live on the Red Planet, but there is no technology so far that would enable a return trip from Mars to Earth. The company is planning the first such trip to Mars in 2023 and another crew every two years afterwards with the goal of establishing a permanent human colony. Read more at Khaleej Times.