00:00And now it gets interesting. The best material against cosmic radiation is something extremely
00:05mundane. Hydrogen-rich materials, so for example, water, plastic, food and fuel. That is why there
00:15are concepts where water tanks, supplies and waste are arranged around the crew areas as natural
00:22radiation shielding. But there are also ideas for active shielding. We are talking for example about
00:28magnetic shields, plasma fields and superconducting coils. So basically an artificial mini magnetic field
00:36around a spaceship. Technically fascinating but currently still extremely difficult to implement.
00:42And there's silver elephant in the room. What is SpaceX doing with Starship? Starship has an
00:48advantage due to its size. More volume means thicker structures. More propellant to shield the crew at
00:54least on the side of the tanks. More possibilities to set up shelter areas. A Mars Starship could for
01:02example have a small radiation shelter in the middle surrounded by tanks and supplies.
