Mars astronauts would get unsafe radiation doses even with shielding

Simulations show that a 1000-day mission to Mars would expose astronauts to radiation doses above 1 sievert, even with metal shielding

Mars astronauts would get unsafe radiation doses even with shielding
Simulations show that a 1000-day mission to Mars would expose astronauts to radiation doses above 1 sievert, even with metal shielding