Massive SpaceX Starship Capacity Makes Radiation Shielding Easy
NASA Space Technology The radiation dose for the 2.5 year round trip between Earth and Mars should give approximately a 1% lifetime increase of a fatal cancer. SpaceX Starship will totally change the situation on payload and travel times. The Starship will be refueled in Earth Orbit. All NASA missions to Mars have launched with multiple stages get to orbit and then to go to Mars. This means the final stage that goes to Mars has to go smaller and slower. They are about 20 times smaller than the launch rocket and they go about 2-3 times slower than a fully fueled in orbit Starship.Starship could travel to Mars one-way in 70-90 days without extra exceptional effort beyond refueling in orbit. This is better than the 180-270 days of other vehicles. Reduced travel time would...
