Active shielding, a concept dating back to the 1960s, is gaining traction for deep space missions. The European Space Agency (ESA) explored the potential of active shielding in 2002, concluding that it outperforms traditional passive shielding methods like water. ESA initiated the ARSSEM study (Active Radiation Shield for Space Exploration Missions) to delve into this technology further. Led by a team akin to the one behind the AMS-02 superconducting magnet, the study aims to overcome challenges related to size and cooling, crucial for successful implementation in space.

https://arstechnica.com/science/2024/03/shields-up-new-ideas-might-make-active-shielding-viable/3