Energy from Outer Space

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EXCERPT:

Energy from outer space

It may seem like the stuff of science fiction, but is actually closer to reality than you may think.  Find out how researchers are boldly going where no watt has gone before.

Where the sun always shines

Solar radiation is the most promising form of space-based power. While a growing solar energy industry already exists, outsourcing to space could help solve a lot of issues. Land-based solar power is limited by night, cloud cover and the atmosphere. In space, the sun never goes away.

Solar panels in space would be attached to orbiting satellites or stationed on the moon. The electricity generated would be transformed to microwaves or lasers and sent wirelessly to earth, where it would be converted back to electricity.

This cosmic energy connection may seem a little far out, but the United States, China, India and Japan all have solar-based power projects in development.

Landing on the moon

The moon is another potential energy resource, Helium-3, an isotope found in abundance on the lunar surface, may one day help generate electricity using nuclear fusion technology. Unlike nuclear fission, which splits an atom, nuclear fusion combines the nuclei of multiple atoms to produce energy.

Nuclear fusion using Helium-3 has the potential to generate electricity with little waste and virtually no radiation. However, researchers still have to fine-tune the nuclear fusion process and find a way to economically mine, transport and refine Helium-3 for use in nuclear reactors.

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