So far, few astronomers have conducted searches for Dyson spheres and none has been successful.
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On his website he offers tips for amateur cosmic archaeologists who wish to hunt for Dyson spheres.
Scientists at Penn State just kicked off a two-year search for massive alien solar power stations known as Dyson Spheres.
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This radiation can be detected although Dyson spheres remain difficult to distinguish from natural astronomical objects that give off similar signatures.
Such so-called Dyson spheres would, if they exist, reradiate captured energy (after some of it had been put to good use) as heat infra-red radiation.
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