March 1, 2017, NASA's Pathfinder mission landed on the surface of the Red Planet and brought with it a number of Lander vehicles, including a small Rover. Another name is Sojourner, the first movable bike Mars spacecraft. According to a citation published on Science.com's Space.com website late Wednesday, July 5, 2017.
Pathfinder was the first NASA mission to successfully land Mars since the spacecraft Viking 1 (Lander) and Viking 2 (satellite or Orbiter) in the mid-1970s, and its success has helped pave the way for space history for subsequent robots to the red planet. During the last two decades, eight other yachts have landed on Mars and 0.5 of them remain in operation until today.
The Pathfinder mission was launched on December 4, 1996, and has traveled for eight months to Mars. After the Pathfinder lander landed on the surface of the planet, the Rover had six wheels and the size of the Sojourner food heater started its operation. According to NASA Pathfinder, the first image of the surface of Mars to Earth was between July 4 and 8, 1997. Pathfinder's Lander was designed to run for a month as the Sojourner was only for a week, but the two robots continued to operate for up to three months, collecting a lot of data about Mars's climate, surface, and interior.
The Pathfinder landing on Mars is not the only major event of NASA that took place on July 4. For example, today, 2005, Deep Impact spacecraft has dispatched an Impactor to Comet Tempel 1 comet to research the composition of the Cold Air object. On July 4, NASA's Juno spacecraft made its way to orbit around Jupiter.
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