There are three ways to look for evidence of alien technological civilizations. One is to look out for deliberate attempts by them to communicate their existence, for example, through radio broadcasts ...

Add Yahoo as a preferred source to see more of our stories on Google. A NASA satellite image of the sky, with a hot, dusty galaxy circled in magenta. A team of astronomers combed through a collection ...

Scientists claim to have detected signs of a long-hypothesised alien power-generation technology in the Milky Way galaxy, hidden away in a trove of astronomical data. These hypothetical “Dyson spheres ...

Tabby’s Star in infrared (left) and ultraviolet (right). Credit: Wikipedia There are three ways to look for evidence of alien technological civilizations. One is to look out for deliberate attempts by ...

A group of researchers have identified at least seven stars that might be surrounded by advanced alien mega-structures known as "dyson spheres." NBC News' Ellison ...

When people hear “Dyson sphere,” their first thought is probably a heavy-duty vacuum. They certainly don’t think of a megastructure surrounding and harnessing a star’s energy with the purpose of ...

There are three ways to look for evidence of alien technological civilizations. One is to look out for deliberate attempts by them to communicate their existence, for example, through radio broadcasts ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." For more than half a century, scientists have wondered if searching for technosignatures like Dyson ...

Researchers found seven stars in our galaxy that might host alien megastructures called Dyson spheres. But these stars' strange behavior could also be explained by other phenomena, like clouds of dust ...

Dyson spheres, the hypothetical mega-structures that advanced alien civilizations might use to enclose a star and harness its energy, suffer from a fatal flaw: They are catastrophically unstable. But ...

In the classic 1937 sci-fi novel "Star Maker," author Olaf Stapledon imagined a massive machine that could encompass an entire star, capturing its energy and harnessing it to provide near unlimited ...

Since the dawn of the industrial revolution, humans have been searching for more energy. Especially lately, there has been a huge interest in wind, solar, geothermal, and other ways to capture and ...