Mars Polar Lander
Mars Polar Lander was a robotic spacecraft intended to study the soil and climate of Planum Australe, near the south pole of Mars. Its launch took place on January 3, 1999 and spacecraft arrived on Mars on December 3, 1999. Therefore, after the descent phase, communication with spacecraft was lost. It is believed that the premature termination of the engine firing before the spacecraft touched the Martian surface, caused it to collide with the surface at high speed and consequently, was destroyed by impact.
NOTE: This addon adds the Mars Polar Lander intact to the surface of Mars, but in reality it was destroyed by the impact.
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