An anonymous caller named Jackie was aired on the Coast to Coast AM show and claims to have seen two men walking on Mars towards to Viking Lander back in 1979. As per Jackie their video feed was cut off as the men approached the craft and restored once they were gone. Her job was to handle the downlink telemetry from the lander. The Viking lander was the first vehicle to send pictures of the Mars surface back to Earth.
As per Jackie, she and her six colleagues were watching the Viking rover footage on multiple screens when she noticed two men in flimsy spacesuits walking to the Explorer from the horizon. She and her co-workers were maintaining the equipment when suddenly the video feed got cut off. She further states that they ran upstairs, [to the control room] found the door was locked and paper was taped over the door so nothing could be seen.
Jackie's story may or may not be credible, it could conceivably be a hoax. I don't know the truth, nor do you. Anybody not directly connected to the incident first hand who wishes to render an opinion is not demonstrating the slightest morsel of Scientific Objectivity. Their Opinions are biased based on what they want to believe.
What I do believe is that Jackie's story, be it a hoax or otherwise, is somewhat supported by many of the images being returned to Earth in recent years.
The imagery is far from proof positive of human or humanoid life forms on mars, but it certainly is intriguing and credible.
Humanoids on Mars Anomalies - Slide Show.
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