With so many "lost cities" being discovered, it's natural that ancient civilizations would fascinate us, especially the advanced ones. Many assume technological advancement is a modern phenomenon ...

"The longer human civilization lasts ... but suggest that if there were other ancient advanced species to be found, they would be discovered through exploration of elemental and compositional ...

As civilizations advance, they may need to migrate across the galaxy, and some researchers speculate they could use their own stars as massive engines. New research explores the possibility of a ...

If an alien civilization has technology similar to ours, could it detect life on Earth? Answering this will help our own ...