The Apple App Store allows you to upload four screenshots while Google Play accepts up to eight. Make sure to use all of them. Screenshots, app promos and walkthrough videos are prime real estate in any app store description. Including compelling imagery and screenshots that sum up an app's key features can make the difference between a download and a swift tap of the X button.
Mars Pathfinder was launched on December 4, 1996, and landed on Mars seven months later, on July 4, 1997.   Launched in 1996 by NASA, Pathfinder descended to the Martian suâ¦rface in July 1997 using parachutes, rockets, and air bags. 1 person found this useful.
Mars 2 - USSR Mars Orbiter/Soft Lander - 4,650 kg - (May 19, 1971) The Mars 2 lander was released from the orbiter on November 27, 1971. It crashed-landed because its braking rockets failed- no data was returned and the first human artifact was created on Mars. The orbiter returned data until 1972.