Venus was one of the primary planets to be visited by shuttle from Earth. Tests don't keep going long on a superficial level, where the environment is multiple times denser than Earth's and temperatures are sufficiently hot to liquefy lead. Rocket went to Mercury utilize Venus' gravity to modify their directions; even missions made a beeline for the external close planetary system regularly fly by Venus first.
Which was the first planet in the solar system to be visited by a Spacecraft?
the first planet visited by a Spacecraft