Mars - Viking 1 Orbiter
Global mosaic of Mars centered on Valles Marineris
Global mosaic of 102 Viking 1 Orbiter images of Mars
taken on orbit 1,334, 22 February 1980. The images
are projected into point perspective, representing
what a viewer would see from a spacecraft at an
altitude of 2,500 km. At center is Valles Marineris,
over 3000 km long and up to 8 km deep. Note the
channels running up (north) from the central and
eastern portions of Valles Marineris to the dark
area, Acidalic Planitia, at upper right. At left
are the three Tharsis volcanoes and to the south is
ancient, heavily impacted terrain.
(Viking 1 Orbiter, MG07S078-334SP)
Mars
Mars: Geology
Viking Mission