Scientists have discovered evidence of super volcanoes on Mars.
While studying ancient impact craters, Joseph Michalski, a planetary scientist, discovered large basin craters that showed no evidence of impact.
"We think they formed through explosion and through collapse and that's why we decided to call them super volcanoes," Michalski said.
The surface of Mars is covered with thousands of impact craters. However, Michalski said these new super volcanoes don't fit the typical description of even the ancient, eroded impact craters.
The oldest of impact craters tend to be shallow and eroded, while younger ones tend to be deep.
"These things are deep and steep but they don't have any of the pieces of impact," Michalski said. "We think it gives us a window into the most ancient geologic history and volcanic history of Mars"
The next step in his research process is to continue to test these ideas and challenge them.