Science & Space

A Chinese rover that has been exploring Mars’ northern hemisphere for more than three years has found evidence to suggest that this region was once covered by a gigantic ocean. This huge body of water could have spread out over as much as one-third of the planet’s surface, Chinese scientists based in Hong Kong claim, in a newly published study that boosts the long-held theory that Mars was once a wet planet that could conceivably have supported life. A Giant Crater with a Giant Sea In May 2021 the Chinese rover Zhurong, carried by its orbital lander Tianwan-1, landed on Mars in the southern Utopia Planitia region, which is located in the planet’s northern lowlands. This area is part of