The first pictures captured by a spacecraft from the vicinity of Mars and beamed back to Earth were received on Oct 1, 1965 from the U.S. Mariner 4 spacecraft.
No. Mankind not any spacecraft made it to Mars until 1971.
The first spacecraft to land successfully on Mars was Viking 1 in 1975
The spacecraft that landed on Mars in the 1970s was the Viking 1 Lander. It was the first spacecraft to have landed on Mars on July 20, 1976.
the first spacecraft to explore mars is the mariner 4
Mariner 4
never
The mariner spacecraft explored Mercury, Mars, and Venus. The first successful space probe and first spacecraft visit to a planet was Mariner 2.
NASA's Viking 1 and Viking 2 landed on Mars in 1976.
Mars has constantly been visited by spacecrafts. The first spacecraft to visit Mars was the Mariner 4. After that Mars has been visited by numerous spacecrafts like: Mars Pathfinder, Mars Global Surveyor, Mars Odyssey, Mars Express and the Mars 2 which was the first spacecraft to land on Mars.
venus was the first planet visited by the American spacecraft
No, humans have not traveled to Mars yet. Only robotic spacecraft have been sent to explore Mars, such as the Mars rovers and orbiters. The first crewed mission to Mars is currently planned for the mid-2030s by NASA.