Advancements in radiation shielding technologies are crucial for protecting astronauts from the harsh radiation environment of space. Outside Earth’s atmosphere, cosmic rays and solar radiation pose health risks to astronauts. Effective shielding involves designing materials that can attenuate and divert harmful radiation, safeguarding both spacecraft and astronauts. Innovative solutions include advanced composites and magnetic shielding systems, seeking a balance between weight, efficiency, and durability. As humanity aims for more distant space exploration, continuous refinement of radiation shielding technologies remains a critical aspect to ensure the safety and success of manned space missions.