Researchers have identified stars in our Milky Way galaxy that are surrounded by super-advanced alien megastructures known as spheres is a hypothetical megastructure that encompasses a star and captures a large percentage of its solar power output. These structures, first proposed in the Star Trek pilot in 60s, could be built by highly technologically advanced and alien civilizations. The most extreme versions might include a solid sphere or swarms of gigantic structures around the star. If such megastructures exist, we might be able to detect them by looking for infrared excess emissions (IEEs) caused by the heat from the star interacting with the sphere."