Other than Earth, no planet in the solar system has been so thoroughly or long examined as Mars. For more than two decades now NASA’s Jet Propulsion Laboratory has continuously explored the Red Planet with an array of orbiters, landers, and rovers. What laid the groundwork for this unparalleled r
This image of Mariner 4 superimposed on an image of Mars was used to advertise the Mariner 4 mission. Credit: NASA. For more than two decades now’s Jet Propulsion Laboratory has continuously explored the Red Planet with an array of orbiters, landers, and rovers.
What laid the groundwork for this unparalleled record of exploration? This 90-minute documentary describes the challenges ofFor much of human history, Mars was no more than a tiny reddish dot in the sky. But in 1965 the first spacecraft ever to visit Mars, JPL’s Mariner 4, began to change our understanding of the planet with its grainy black-and-white images of Mars. The data from Mariner 4 and those that followed were full of confusing data for the scientists to understand.
Mariner 4 was a NASA spacecraft that was launched on November 28, 1964, as part of the Mariner program. Its mission was to fly by and study Mars, making it the first spacecraft to successfully fly by another planet. Mariner 4’s flyby of Mars took place on July 15, 1965, and it returned the first close-up images of the Martian surface, showing a barren, heavily cratered terrain with no signs of canals or other features that had been previously proposed as evidence of Martian civilization.
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