Scientists say that they have discovered a supervolcano on Mars for the first time using images and topographic data from NASA’s Mars Odyssey, Mars Global Surveyor and Mars Reconnaissance Orbiter. This supervolcano is located in the Arabia Terra region of Mars, which has a lot of impact craters. They said a volcano like this on Earth would have been a “game changer,” affecting global temperatures for years. There are also a few more basins nearby the supervolcano that could have been volcanoes. They said if a handful of these were once active, they played a major role in the evolution of Mars.