A physicist explains the overlooked problem that could doom Elon Musk’s Mars colonization plans: dust

A physicist highlights toxic Martian dust as a critical challenge for Elon Musk's Mars colonization plans. The SpaceX board has pledged 1 billion shares if Musk establishes a self-sustaining colony of 1 million humans on Mars, but experts warn of hazards including radiation exposure, low gravity, and the difficulty of constructing permanent habitats.