Mariner 2
It wasn't a person that discovered Olympus Mons. When Mariner 9 visited Mars in 1971, it sent back pictures of huge volcanoes and canyons. It was Mariner 9 that discovered Olympus Mons.
Mercury was studied by the Mariner 10 Probe and has a crater pitted surface.
the name of the first spacecraft to first observe venus was venera 3. The year it observed venus 1962.
Yes Mariner 2 flew past Venus. It was the first space probe to achieve this.
Mariner 9 was created on November 13, 1971.
The USA supported the Mariner 9 because it was from NASA.
Mariner 4
1975
Mariner 9 orbited Mars in November 13, 1971.
Mariner 9
Mariner 9 orbited Mars in November 13, 1971.
It was a 1971 Mars Orbiter.
May 19 - Mars probe program: Mars 2 is launched by the Soviet Union.May 30 - Mariner program: Mariner 9 is launched toward Mars.Nov 13 - Mariner program: Mariner 9 becomes the first spacecraft to enter Mars orbit successfully.
The Mariner 9.
Middle of november 1971.
Mariner 8