우리는 LingQ를 개선하기 위해서 쿠키를 사용합니다. 사이트를 방문함으로써 당신은 동의합니다
쿠키 정책.
Three Years Later Mars Rovers Keep Going
Three Years Later Mars Rovers Keep Going
Two U.S. robotic rovers are entering their fourth year exploring opposite sides of Mars, an unexpected length of time for a mission planned for only three months. Yet, now after three years, the mechanical geologists keep plodding along, studying Martian rocks and soil. Although they show certain signs of aging, new computer software has given them expanded capabilities, proving you can teach an old robot new tricks