In the 1960s, physicist Freeman Dyson proposed that advanced alien civilizations could be building enormous megastructures around a star to harness its energy. Such a move would allow a civilization ...

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James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

If advanced alien civilisations are building vast satellite swarms designed to harvest a star’s energy, we should be able to see them – so why haven’t we? One answer might be that these structures, ...