In addition, future analyses might include more items on relationship quality to more fully. approach the construct of relationship happiness. 22 Also, with longitudinal data it is possible to examine. the association between parental relationship quality and child outcomes over time.
A rover (or sometimes planetary rover) is a space exploration vehicle designed to move across the surface of a planet or other celestial body. Some rovers have been designed to transport members of a human spaceflight crew; others have been partially or fully autonomous robots.
| Cool Cosmos. The first robot rover to land and travel on Mars was the Mars Pathfinder's Sojourner Rover. It rolled onto Mars' surface on July 6, 1997. The Sojourner Rover was a six-wheeled vehicle that was controlled remotely by an operator here on Earth.