A forgotten rival of Ancient Rome has recently come into the spotlight for its impressive water basin, a testament to ...

What is lost are political structures, economic systems, and ruling elites. What persists - always - are the people and their informational legacy. Customs, tools, beliefs, and institutions integrate ...

For decades, scientists engaged in the Search for Extraterrestrial Intelligence (SETI) have probed the galaxy for signs of artificial radio transmissions. Beginning with Project Ozma in 1960, ...

Complex, intelligent life in the galaxy appears vanishingly rare, with the nearest possible civilization perhaps 33,000 light ...