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 ...

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 ...

If your understanding of Stone Age humans is one of primitive cave people bashing rocks together, then perhaps it’s time to think again. Our ancient ancestors were able to build huge Neolithic ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. The Kepler space telescope’s job is to find faraway planets that ...

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 ...

A European Space Agency catalog of the Milky Way's billions of stars could be hiding evidence of highly advanced alien civilizations with serious building skills. Eric Mack has been a CNET contributor ...

The Tripolye are among Europe’s most intriguing early cultures. From about 3600 B.C. to 4100 B.C., they lived in settlements of up to 10,000 inhabitants in areas that are now Ukraine, Moldova and ...

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" ...