Canada’s remote Gros Morne National Park is one of the few places where you can see the Earth’s mantle. During the warmer months, Canada’s easterly island of Newfoundland is a lush wonderland dotted with lakes, bogs and endless forests. But on Newfoundland’s west coast, wedged between the deeply carved fjords and towering peaks of Gros Morne National Park, a barren plateau emerges. Known as The Tablelands, this vast desert-like landscape that resembles Mars is the result of half a billion years of geological activity. But beyond its striking appearance, the park was named a Unesco World Heritage site because it offers a scientific window into the past – and, potentially, into other worlds.