On July 26, according to foreign media reports, NASA's Mars helicopter ingenuity completed its tenth Mars surface flight on Saturday, local time, with a total flight distance of more than 1 mile (1600 meters) < p > < / P > < p > on the same day, the wit took off from the temporary airport of Jeero crater and flew over the rock area called "raised ridges". "With the successful flight of the Mars helicopter today, our total flight distance has exceeded 1600 meters," an official from NASA's Jet Propulsion Laboratory wrote in an instagram update late Saturday The jet propulsion laboratory is home to the mission control centers of perseverance and wit < p > the 10th flight is the most challenging flight for the smart so far. The Mars helicopter has 10 different waypoints to choose when flying over the raised ridges target. It reached a maximum altitude of 40 feet (12 meters), set a new altitude record, and flew about 310 feet (95 meters). From take-off to landing, the whole flight lasted 165.4 seconds, less than 3 minutes < p > during the flight, wit took a large number of images as expected, including images that can help scientists create stereograms of raised ridges rocks. Raised ridges is the area where scientists are considering sending the Mars rover perseverance to investigate. In a pre flight status update, the mission manager of the Jet Propulsion Laboratory said: "we will image the raised ridges, because this is an area of interest to the scientists who operate the perseverance, and they are considering visiting here sometime in the future." < p > wit is now parked at the seventh temporary airport on Mars. Mission scientists are checking the telemetry data and images of the flight. The completion of the tenth flight was a milestone for wit, because NASA engineers initially tested its speed and endurance and expected it to fly up to five times < p > wit arrived on Mars with perseverance in February and made its first flight in April. According to the original plan, wit will fly five times on Mars for technical demonstration to prove that the helicopter can fly with power in the alien world. The Solar Helicopter completed its main mission in April, but NASA decided to extend its mission. In the new test expansion phase, wit was used for reconnaissance to find interesting places for perseverance. JPL wrote in the update: "aerial reconnaissance will help the perseverance team decide what to do next." < p > at present, NASA engineers have not given a specific time when the mission of wit will end. But they had previously said that as long as wit could still move and did not interfere with perseverance's scientific mission, it could continue to fly < p > perseverance is combing the terrain of yezelo crater to look for potential ancient alien microbial fossils. Wit can now help accomplish this task, such as reconnaissance and topographic mapping, discovering areas worthy of research from the air, and flying to places that perseverance cannot reach < p > NASA scientists are particularly curious about raised ridges, because there may have been water flowing there. On its ninth flight, wit took color images of the rocks exposed to the ground, which perseverance may investigate later. NASA scientists said: "we hope that the color image can provide the closest observation of raised ridges. This location is characterized by outcrops. Some team members believe that it may record the deepest underwater environment of yezelo lake." < p > however, scientists say it is possible that perseverance's mission schedule is very tight and does not allow it to visit these rocks, so wit may study these sediments in detail（ Small) < / P > < p >