Elon Musk, the billionaire behind SpaceX, is offering his sperm to help "seed a colony" on Mars in an effort to make life multi-planetary. Despite his failed plans to launch a manned mission to Mars this year, Musk now aims to settle a million colonists on the red planet in the next 20 years, including many of his own offspring. As a proud "pro-natalist," Musk believes that declining birth rates pose a greater threat to civilization than global warming. He is already a father to at least 12 children and has expressed concerns about population collapse. The natalism movement, which has been associated with far-right ideologies, also warns about the risks of falling birth rates in Western Europe and North America. Musk's unconventional offer has sparked discussions about the future of human colonization and the ethical implications of his proposal.