After the space agency canceled its VIPER rover, an empty space was available on a private spacecraft that will still head to the lunar surface. Moon, Astrobotic Technology Inc, Astrolab Inc, National Aeronautics and Space Administration, Space and Astronomy, Private Spaceflight, Robots and Robotics After the space agency canceled its VIPER rover, an empty space was available on a private spacecraft that will still head to the lunar surface. NYT > Business