Rusty Arctic rocks could help us understand water on Mars (photos)

two women on a rocky outcrop. one squats in front with a laptop while the second, in behind, uses an instrument against a rusty slope. in the background are mountains and blue sky with clouds

Researchers are on a hunt for Mars-like rocks high in Canada's Arctic.

The T-MARS project (also known as Terrestrial Mineral Analysis by Remote Sensing) is an expedition testing space living on Axel Heiberg, in the Arctic Ocean. Like ancient Mars, the remote island in traditional Inuit territory is a cold spot that still allows for liquid water at times of the year.