Alien megastructures are a fun idea, but they seem likely to collapse under the weight of their ambition. Vast machines that wrap around stars, encase entire planets, or even have the ability to push ...

Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically feasible, according to a new analysis – satisfying both our sci-fi fancies and our innate yearning ...

Scientists just pinpointed the exact cosmic zones where alien megastructures could be hiding, and the evidence is wilder than any sci-fi movie.

Our search for technosignatures—clear signs of advanced civilizations beyond Earth—takes many forms. Many are driven by the famous Drake equation, which attempts to estimate how many technological ...

Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically feasible, according to a new analysis – satisfying both our sci-fi fancies and our innate yearning ...

New theoretical models have strengthened the case that immense, energy-harvesting structures orbiting their host stars could exist in principle in distant stellar systems. With the right engineering ...

A rendering of a potential Dyson sphere, named after Freeman A. Dyson. As proposed by the physicist and astromomer decades ago, they would collect solar energy on a solar system wide scale for highly ...

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Last month, the online world went into a tizzy over the possibility of intelligent alien life lingering near a distant star in our galaxy. The star in question is called KIC 8462852, and the reason it ...

To date, the search for alien intelligence, collectively known as SETI, has focused on more human-esque types of searches. These include radio signals, laser pulses or even physical megastructures ...

Add Yahoo as a preferred source to see more of our stories on Google. (cokada/iStock/Getty Images) Alien megastructures built to harvest stellar energy or alter the orbits of stars may be physically ...