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, ...

From lava tubes on Mars to ice pockets on Europa, subterranean environments may offer the best chance of finding life—and ...

Erich von Däniken proposed that monumental structures such as the pyramids could have been built with help from aliens. Stefan Baumann Could ancient humans really have built the pyramids without ...

Mars, the Red Planet, has long captured our imagination as a possible home for life. Recently, a team of scientists uncovered a groundbreaking discovery: caves on Mars formed by water, potentially ...