The Viking 2 mission was part of the American Viking program to Mars, and consisted of an orbiter and a lander essentially identical to that of the Viking...

investigations. Each orbiter, based on the earlier Mariner 9 spacecraft, was an octagon approximately 2.5 m (8.2 ft) across. The fully fueled orbiter-lander pair...

Mars, the orbiter began returning global images of Mars about five days before orbit insertion. The Viking 1 Orbiter was inserted into Mars orbit on June...

Spirit Zhurong Viking 1 Viking 2 In 1999, Mars Climate Orbiter accidentally entered Mars' atmosphere and either burnt up or left Mars' orbit on an unknown...

to reduce the number to five distinct images. The Mission to Mars: Viking Orbiter Images of Mars CD-ROM set image numbers for these are: 035A72 (VO-1010)...

it enabled several high-profile NASA missions, including the Voyager and Viking planetary probes and the joint West Germany-U.S. Helios spacecraft. All...

orbit, functional or not, Mars orbiters have been predicted to remain in orbit for a certain amount of time. Viking 1 orbiter, likely to be in orbit as...

functional but (probably) orbiting: Viking 1 & 2 orbiter Mariner 9 Mars Global Surveyor Mars 2, 3, 5 Phobos 2 Tianwen 1 Deployable Camera 2, CNSA, 2021 Mangalyaan...

2016. Retrieved February 28, 2018. "Viking 1 Orbiter". NSSDCA. NASA. Retrieved February 25, 2018. "Viking 2 Orbiter". NSSDCA. NASA. Retrieved February...

covered by a layer of regolith estimated to be 50 m (160 ft) thick. Viking 2 orbiter image is from a height of 30 km (19 mi). Asteroids have regoliths developed...