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英文文章： 
NASA's Mars rover Perseverance safely landed on Mars on Thursday, Feb. 18, kicking off a two-year mission to explore the Martian terrain and search for signs of ancient life. The six-wheeled rover touched down in the Jezero Crater, a site located near Mars' equator that is believed to have been home to a river delta billions of years ago. Over the next several weeks, the rover will deploy its suite of scientific instruments and attempt to collect rock and soil samples that will eventually be returned to Earth for study.
NASA's Mars rover Perseverance landed on Mars on Feb. 18, beginning a two-year study to explore Mars' terrain and hunt for signs of past life. The rover landed in Jezero Crater, known to have been a river delta billions of years ago, and will use scientific instruments to gather rock and soil samples for analysis on Earth.