An ancient Martian system of canyons and valleys could be home to archaic life forms, a ground-breaking scientific paper has found. Scientists investigating the Red Planet’s mind-boggling cave system ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself? The idea that aliens assisted the ...

An international team of cave explorers has shown that cave walls and the prehistoric rock art that adorns them can preserve human DNA for thousands of years. Using sterilized scalpels and two layers ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and living safely—beyond our planet. “I was like, ‘OK, I'm pretty sure that ...

In a first, scientists recovered human DNA from ancient cave paintings, a breakthrough that could open new ways to investigate prehistoric human activity by enabling caves to act as “genetic archives” ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

The series will, as always, takes a look at the many ways it is possible that human development comes from a sect of magical aliens. Each episode of “Ancient Aliens: Origins” seeks to revisit the ...