- Should future Mars missions have all-female crews? A team of researchers found that, on a 1,080-day mission, a four-member, all-female crew would need 3,736 pounds (1,695 kilograms) less food than an all-male crew would, amounting to a savings of $158 million. https://news.yahoo.com/future-mars-missions-female-crews-100030178.html 716 comments futurology