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Journalists gather at NASA's Jet Propulsion Laboratory awaiting the landing of InSight on Mars Monday, Nov. 26, 2018, in Pasadena, Calif . A NASA spacecraft is just a few hours away from landing on Mars. The InSight lander is aiming for a Monday afternoon touchdown on what scientists and engineers hope will be a flat plain on the red planet. (AP Photo/Marcio Jose Sanchez)