Spaceflight

The Apollo spacesuits were pretty impressive, but they didn’t account for radiation that much. There are two reasons why we care more for planning a trip to Mars: we simply know more about solar radiation and what it can do to you, but also there’s a factor of dosage. A mars trip is a lot longer and would expose astronauts for much longer. We already consider radiation dosage frequently on earth. When the doctor gives you an x-ray, they go to the other room behind a lead wall because if they were in the room every time they x-rayed a patient, they would get a dangerous dose of x-rays over time, but you getting a very high dose of X-rays once in a while is not a big deal.