On the first day of the Mapping Phase of the MGS mission — during the second week of March 1999 — MOC was greeted with this view of «Happy Face Crater» (center right) smiling back at the camera from its location on the east side of Argyre Planiti
On the first day of the Mapping Phase of the MGS mission — during the second week of March 1999 — MOC was greeted with this view of «
Happy Face Crater» (center
right)
smiling back at the camera from its location
on the east side of Argyre Planiti
on the east side of Argyre Planitia.