What are the dangers of going to space? Space might look peaceful from afar but it’s a harsh environment, especially for humans. From DNA damage to bone loss to making sure there’s enough food for long missions—space is tough. But NASA is working hard to keep our astronauts safe on every step of the journey. A NASA scientist explains what it takes. Explore more on the hazards of human spaceflight: https://www.nasa.gov/hrp/hazards/ | Space 360