Viking 2: the story

1. Viking 2

   NASA Project Viking · 1975 – 1980

   While Viking 1 landed on the equatorial plains, Viking 2 was sent far north to Utopia Planitia, where scientists hoped subsurface ice would reveal active signs of water and life.

2. The backup that flew second

   9 September 1975 · LC-41

   Originally scheduled to fly first as Viking A, a battery defect caused engineers to swap it for Viking B. Re-designated Viking 2, it launched 20 days later into a sweeping interplanetary orbit.

3. The 8.5-degree westward tilt

   3 September 1976 · 22:37:50 UTC

   Touchdown was rougher than its twin's: one of the lander's footpads landed directly atop a volcanic rock, causing the entire lander to sit at a permanent 8.5° westward tilt in Utopia Planitia.

4. The Sol 80 Marsquake

   Sol 80 · 23 November 1976

   While Viking 1's seismometer uncaging pin jammed and never worked, Viking 2's seismometer functioned on the lander body. On Sol 80, during a quiet wind lull, it recorded an event consistent with a magnitude 2.8 marsquake.

5. Water frost on the rocks

   May 1977 · Sol 260 Northern Winter

   As northern winter plunged temperatures to -120°C, Camera 2 photographed a delicate white dusting of water-ice frost coating the red basalt rocks—the first visual confirmation of Martian surface ice.

6. Winter darkness & battery drain

   11 April 1980 · Sol 1281

   After 1,281 Martian sols (nearly four Earth years), Viking 2's nickel-cadmium batteries degraded under harsh winter cold. Telemetry ceased on April 11, 1980, leaving the tilted lander silent in Utopia.

7. Found in Utopia Planitia

   HiRISE Frame PSP_001501_2280

   Thirty years later, the HiRISE camera pinpointed Viking 2 at 47.668° N, 134.280° E, identifying the bright lander deck, parachute, and heat shield impact site scattered across the ancient northern lowlands.

NASA Project Viking · 1975 – 1980

Viking 2

While Viking 1 landed on the equatorial plains, Viking 2 was sent far north to Utopia Planitia, where scientists hoped subsurface ice would reveal active signs of water and life.

9 September 1975 · LC-41

The backup that flew second

Originally scheduled to fly first as Viking A, a battery defect caused engineers to swap it for Viking B. Re-designated Viking 2, it launched 20 days later into a sweeping interplanetary orbit.

3 September 1976 · 22:37:50 UTC

The 8.5-degree westward tilt

Touchdown was rougher than its twin's: one of the lander's footpads landed directly atop a volcanic rock, causing the entire lander to sit at a permanent 8.5° westward tilt in Utopia Planitia.

Sol 80 · 23 November 1976

The Sol 80 Marsquake

While Viking 1's seismometer uncaging pin jammed and never worked, Viking 2's seismometer functioned on the lander body. On Sol 80, during a quiet wind lull, it recorded an event consistent with a magnitude 2.8 marsquake.

May 1977 · Sol 260 Northern Winter

Water frost on the rocks

As northern winter plunged temperatures to -120°C, Camera 2 photographed a delicate white dusting of water-ice frost coating the red basalt rocks—the first visual confirmation of Martian surface ice.

11 April 1980 · Sol 1281

Winter darkness & battery drain

After 1,281 Martian sols (nearly four Earth years), Viking 2's nickel-cadmium batteries degraded under harsh winter cold. Telemetry ceased on April 11, 1980, leaving the tilted lander silent in Utopia.

HiRISE Frame PSP_001501_2280

Found in Utopia Planitia

Thirty years later, the HiRISE camera pinpointed Viking 2 at 47.668° N, 134.280° E, identifying the bright lander deck, parachute, and heat shield impact site scattered across the ancient northern lowlands.

RoverVilla / Viking 2

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