Mariner 4 was the first successful mission to Mars in 1965, producing 21 black and white images. The Soviet Union had attempted five missions prior. Mars has Olympus Mon, the tallest volcano in the solar system, and an average temperature of -50°F (-45°C).
The first successful mission to Mars was the Mariner 4 spacecraft, which launched from the United States on November 28, 1964 and reached the planet on July 14, 1965, four years before the first manned mission to the moon. The Mariner 4 spacecraft was responsible for taking the first photos of another planet in space; produced 21 black and white images of the planet. Prior to the successful launch of Mariner 4 to Mars, the Soviet Union had attempted five different missions to Mars from 1960 to 1962, but none of the landed probes yielded useful information.
More about Mars:
The first spacecraft to land on Mars was Mars 3, a Soviet orbiter that landed on the planet, but was only able to transmit data for 20 seconds.
Mars is home to Olympus Mon, the tallest volcano in the solar system at a height of 14 miles (22km) – or about three times as tall as Mount Everest, the tallest mountain on Earth.
The average temperature on Mars is -50 degrees Fahrenheit (-45 degrees Celsius).
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