Yes, it’s true. Mars needs women — as well as men — to carry out the first landmark expedition to the red planet. But before humans set boot on the far-off world, what’s really mandatory are a few good mice. That’s the position of the Mars Gravity Biosatellite Project, a student-led private initiative to study the effects of Martian gravity on mammals. The mission that the students have accepted is nothing short of groundbreaking. Can Earth-adapted organisms survive lengthy travel to Mars, as well as long stays on the red planet?