Crewed space travel isn’t just an engineering feat. It’s a test of the endurance and resilience of the human body. In microgravity, astronauts' bodies undergo dramatic changes: muscles weaken, bones lose density, fluids shift, and vision can be affected. Beyond that, deep space exposes them to radiation, which can damage DNA and increase long-term health risks.As space agencies and private companies plan for missions to the Moon, Mars, and beyond, understanding exactly how space travel impac ...read more