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 ...

Astronomers have identified seven star systems in our galaxy that could potentially host a Dyson sphere — a hypothetical megastructure an alien civilization could build around a star or black hole to ...

The science of planet-hunting has truly taken off in the 21st century, with the transit method leading the way. When a planet passes in front of its parent star, relative to our line-of-sight, some of ...

In 2015, The Atlantic first reported that astronomers had discovered some tantalizing information about a distant star in the Milky Way, located about 1,300 light-years from Earth in a swan-shaped ...

The truth is out there — or at least that’s what researchers at NASA and the Search for Extraterrestrial Intelligence (SETI) Institute are hoping. While much of the SETI Institute's research involves ...

Our future in space may be one of millions or even trillions of vast space station, space habitats, and megastructures. How would a space-faring civilization going about traveling around such an ...

If you’re trying to come up with the best game plan for proving the existence of extraterrestrials, you’ve got plenty of options. Naturally, you want a strategy with a high chance of success, simply ...

Throughout the 1960s and ’70s, starry-eyed architects set their minds to megastructures – massive, multi-purpose designs that could house communities or even entire cities. Complex and expensive to ...