Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

A story that went viral this week reports that astronomers finally found E.T., but those aren't the facts. CNET's Eric Mack talks with the astronomers involved about what is still a very interesting ...

During excavations near Stăuceni in the Botoșani district in northeast Romania, archaeologists from FAU discovered a megastructure built by the Cucuteni-Trypillia culture. Covering approximately 350 ...

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 ...

In 1960, Freeman Dyson proposed how advanced civilizations could create megastructures that enclosed their system, allowing them to harness all of their star's energy and multiplying the habitable ...

, July 10 -- Scientists searching for signs of intelligent extraterrestrial life say some of the coldest objects in the Milky Way may not be stars at all but massive energy-collecting structures built ...

During the 1960s, Freeman Dyson and Nikolai Kardashev captured the imaginations of people everywhere by making some radical proposals. Whereas Dyson proposed that intelligent species could eventually ...

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 ...

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 ...

The excavation of a Stone Age community center in Ukraine is helping explain why large groups of tens of thousands of people flourished and then fell more than 5,000 years ago. The "megastructure" ...