Hydrogels could be ideal radiation protection for astronauts

It's a key problem that will need to be addressed if humans are to attempt deep-space, long-duration missions. Not only is radiation exposure a dangerous health risk to humans, but it also poses a hazard to equipment and operating systems. Now, a team at Ghent University in Belgium are testing a possible solution: 3D printed hydrogels, which could provide deformable layers of water-filled protection.