Brain › Science & TechnologyWhich probe became the first probe to visit Mercury in 1974?Mariner 8Mariner 9Mariner 10Venera 11AnswerThe correct answer is C) Mariner 10.More Science & Technology questionsWhen does a transit of Mercury occur?What is Calores Montes?What is Mercurys spin-orbit resonance?What is the planet Uranus named after?How many years does it take for the planet Uranus to orbit the Sun once?What element comprises the bulk of Uranus atmosphere?Play Brain · Practice