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As we explore the (1) ___________, we naturally ask, “Is there life on other planets?” In 1976, NASA’s twin Viking landers touched (2) ___________ on Mars in an attempt to answer a weighty question: Is there life on the Red Planet? Since then, NASA and other space agencies have sent many more (3) ___________ to Mars. However; the answer so far is, “We don’t know, but we’ll keep searching.” All life on Earth needs liquid water to (4) ___________. Since spacecraft haven’t found any liquid water on Mars’ (5) ___________, scientists think that there is no life there. But what about below the surface? Spacecraft have discovered (6) ___________ water in Mars’ polar ice caps and in clouds of ice crystals. This means that there (7) ___________ be liquid water below the surface where it’s warmer. NASA plans to continue to (8) ___________ Mars every two years. In future missions, we’ll explore below the surface and search for liquid water - and life!
As we explore the (1) _____universe ______, we naturally ask, “Is there life on other planets?” In 1976, NASA’s twin Viking landers touched (2) ____surface _______ on Mars in an attempt to answer a weighty question: Is there life on the Red Planet? Since then, NASA and other space agencies have sent many more (3) _____ missions ______ to Mars. However; the answer so far is, “We don’t know, but we’ll keep searching.” All life on Earth needs liquid water to (4) _____ survive ______. Since spacecraft haven’t found any liquid water on Mars’ (5) _____ down ______, scientists think that there is no life there. But what about below the surface? Spacecraft have discovered (6) ____might_______ water in Mars’ polar ice caps and in clouds of ice crystals. This means that there (7) _____ frozen______ be liquid water below the surface where it’s warmer. NASA plans to continue to (8) _____explore______ Mars every two years. In future missions, we’ll explore below the surface and search for liquid water - and life!