Researchers have recently uncovered a series of artifacts that suggest the existence of pre-human engineers, challenging our understanding of early human evolution. These findings, dispersed globally, ...

(via PBS Space Time) We’re almost certainly the first technological civilization on Earth. But what if we’re not? We are. Although how sure are we, really? The Silurian hypothesis, which asks whether ...

Earth is completely overrun with humans -- there are billions of us living and dying on this planet, leaving signs of our existence in the soil, atmosphere, and even in space. Are we the first, though ...