Mariner 2 launches to Venus on August 27, 1962.

the world's first successful mission to another planet After a 3.5-month journey through space, Mariner 2 flew by Venus.

The mission launched just one month after Mariner 1's launch failure. Following departure from Cape Canaveral, Florida,

When an electrical problem with the Atlas-Agena rocket caused it to roll, Mariner 2 almost met the same fate.

This rendered it unable to respond to any mission control guidance commands.

The problem miraculously resolved itself, and Mariner 2 was on its way to Venus!

Mariner 5 followed up on Mariner 2's Venus study with a closer look at the planet's atmosphere five years later.

The spacecraft made several discoveries about the planet and set a new record by measuring the solar wind.

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