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Here is a nice presentation on a topic on which I'm quite interested ultimately: an electromagnetic anti-radiation shield, the SR2S:
To explain this in a few words:
That's about the radiation problem in space, that could kill the astronauts during a long trip. This is not a problem on the ISS, because in LEO, they still benefit from the Earth magnetic field that acts as a shield by deviating the deadly radiations. The problem was limited for the Moon missions too, as their exposure time was short enough (a solar flare could have killed a crew though, if it happened during the mission).
But this would be a real problem for a long mission in space. For the trip itself, but even on Mars or around Venus, as those planets have no geomagnetism, unlike Earth.
An inert shield (like a lead screen) is not that efficient while being very heavy. So the idea to solve this is to mimic the Earth geomagnetism, and to create an artificial magnetosphere around the ship, to shield the astronauts.
The method to perform this is to use supraconductor electromagnets. For those who don't know, a supraconductor is a material that allows electricity to flow through it without any resistance, which avoids heat dissipation. The drawback is that a supraconductor only works at a very low temperature. Space is naturally cold, but an active cooling system would probably be necessary.
To explain this in a few words:
That's about the radiation problem in space, that could kill the astronauts during a long trip. This is not a problem on the ISS, because in LEO, they still benefit from the Earth magnetic field that acts as a shield by deviating the deadly radiations. The problem was limited for the Moon missions too, as their exposure time was short enough (a solar flare could have killed a crew though, if it happened during the mission).
But this would be a real problem for a long mission in space. For the trip itself, but even on Mars or around Venus, as those planets have no geomagnetism, unlike Earth.
An inert shield (like a lead screen) is not that efficient while being very heavy. So the idea to solve this is to mimic the Earth geomagnetism, and to create an artificial magnetosphere around the ship, to shield the astronauts.
The method to perform this is to use supraconductor electromagnets. For those who don't know, a supraconductor is a material that allows electricity to flow through it without any resistance, which avoids heat dissipation. The drawback is that a supraconductor only works at a very low temperature. Space is naturally cold, but an active cooling system would probably be necessary.
