00:00The radiation emitted by such propulsion systems also poses an enormous problem, especially
00:06on missions where shielding astronauts from radioactive waste and neutron radiation is
00:12essential.
00:13Without robust shields, crew members could be exposed to life-threatening doses.
00:19Before sending humans and nuclear reactors together through the vast reaches of space,
00:24we should have these little details sorted out.
00:27To prevent these risks, engineers are working on advanced shielding materials like lead
00:33or boron compounds that can effectively block radiation without excessively increasing the
00:41weight of the spacecraft.
00:42However, shielding is inherently heavy.
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