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July 20, 1976: Landing on the red planet

Today marks the 40th anniversary — July 20, 1976 — of the first U.S. robotic landing on another planet by the Viking 1 spacecraft on Mars.

Source: You’ll find lots of information about the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. Also we have facts about the space station, ISS, SpaceX launch, space program, and outerspace. Space Flight

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July 20, 1976: Landing on the red planet

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