[Answer] What was the first American spacecraft to land on the planet Mars?

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What was the first American spacecraft to land on the planet Mars?

• Viking 1:There have been many failed - and several successful - almost 500-million-mile trips to Mars by spacecrafts launched from all over the globe. Cheers erupted from the U.S. on July 20, 1976, as Viking 1 became the first American spacecraft to land on Mars' surface. The planned landing date was July 4, but it was pushed back due to safety concerns. For six years, Viking 1 remained on the planet, sending images and data back to Earth. Source: Space.com

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