Dyson Sphere - Everything2.com
A Dyson Sphere is a hollow sphere around a sun with a circumference of 1 AU, with a hollow space inside. A Dyson Sphere of this size would have a surfac...
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A Dyson Sphere is a hollow sphere around a sun with a circumference of 1 AU, with a hollow space inside. A Dyson Sphere of this size would have a surfac...
Astronomers have identified stars as candidates for alien megastructures, based on their infrared excess emissions (IEEs).
We'd need to cover about 2.3% of the Earth in photovoltaics to meet our energy needs. If an ETI did this, would it create a technosignature?
If alien technological civilizations exist, they almost certainly use solar energy. Along with wind, it's the cleanest, most accessible form of energy, at least here on Earth. Driven by technological advances and mass production, solar energy on Earth is expanding rapidly.
Two new scientific studies identify quite a few stars generating excess radiation that could, maybe, possibly, potentially be the result of ET's Dyson Spheres.