All future Mars colonists will be vegan. That is, if PETA has anything to say about it.
In an open letter to South African entreprenuer Elon Musk, which cites not one but two campy science-fiction films from the 1970s, PETA is pleading with unknowable future humans not to eat any meat if they get their asses to Mars.
"The opportunity to colonize Mars means a chance to make a fresh start, especially now that we’ve degraded our own planet by treating our fellow animals like disposable widgets, filled the air with pollution that will soon make the sky in “Soylent Green” look clear, and populated the Earth with so many humans that the premise of “Logan’s Run” starts to look practical," reads the letter.
(Spoiler alert: the societies in both those movies spend a lot of their time eating people.)
"We can get off on the right foot on our new biosphere by ensuring that SpaceX crafts traveling to Mars are stocked only with vegan food and that Mars’ colonists commit to enjoying an animal-free diet once they’ve arrived," the letter continues.
"Colonizing Mars can give us the opportunity to learn from our mistakes on one planet and create a just civilization on another. Ensuring that Mars is a vegan planet (rather than importing animal products from Earth or creating factory farms on our new home) would protect animals from the horrors that they endure in the meat, egg, and dairy industries."
PETA has made similiar requests of SpaceX previously.