NASA has recreated Mars' iconic "spiders" in a first-of-its-kind lab experiment, and you can watch it happen in this video.

They're not actual spiders, of course, but rather strange geological features.

Scientists at NASA's Jet Propulsion Laboratory have recreated spider-like araneiform terrain, a geologic formation found on Mars, in a lab on Earth.

A team of scientists at NASA have confirmed how Mars' 'spider' formations are carved by carbon dioxide. They were first discovered in 2003 and each formation can stretch more than half-a-mile from end-to-end.

To uncover the hidden features, researchers employed a sophisticated technique. New research presented at the Europlanet Science Congress this week has uncovered astonishing findings beneath the dusty surface of Mars.