Viking Lander 1 and 2

Both missions Viking 1 and 2 were headed to Mars. They were composed of satellite sessions that imaged the surface from orbit and mediated the surface modules' communication for both missions. Satellite section had a braking engine, fuel, solar batteries, television aerials. Lander, weighing 1 120 kg was on three supports, with two radioisotope generators, control computers and other scientific apparatus.

Viking 1 was launched August 20, 1975 with rocket Titan 3E and accelerating stage Centaur. The probe consisted of satellite and surface module. After entering the orbit of Mars, a series of images of areas targeted for landing were taken, and then the surface module Lander I broke off and landed at the selected location, ie. at Chryse Planitia. The satellite module continued in the shootings.

Viking 2 with the same rocket launched September 9, 1975. Viking Lander Module II landed at Utopia Planitia.