Dust, Not Just Rockets: Expert Casts Doubt on Musk's Mars Colony Plan

Astrophysicist Adam Becker warns that a self-sustaining Mars colony faces far more than travel challenges: toxic Martian dust would contaminate suits and habitats, and the planet lacks a thick atmosphere and magnetic shield. Add long transit times, radiation, low gravity, and huge logistical demands. Even with SpaceX’s pledge of $1 billion in shares for a 1-million-person colony, experts say the obstacles are severe and the goal would take far longer and be far harder than envisioned.