It was the first three crew mission and first manned mission without a pilot. It was launched by the soviet union and was the very first mission without people having to wear spacesuits.
March 31, 1966
It was the first spacecraft to orbit the moon, or any other celestial object for that matter. It was launched by the soviet union and weighs 245 kg and 1.5 meters tall.
December 21, 1968
It was launched by NASA, and it was the first mission to bring humans to the moon. It was going to be launched a little while later, but NASA decided to launch it right away to be ahead of Russia. (USA)
April 19, 1971
It is the first space station and orbited around earth. It was by the Soviet Union, and orbited earth for 175 years before purposely crashing into the pacific ocean.
March 2, 1972
It was the first mission to the outer planets and was launched by NASA. It was supposed to be a 21 month fly by Jupiter, but it lasted over 30 years. (USA)
September 5, 1977
It went to study Jupiter and Saturn. It was the first to enter interstellar space. It was launched by NASA, and the mission took 35 years. (USA)
October 30, 1981
Venera 13 was sent to gain data from Venus. It was launched by the soviet union and was the first to send color images to earth from Venus.
October 18, 1989
It studied Jupiter and its moons, and on its way to Jupiter, it visited two asteroids. Its was from NASA, and it was an 8 year mission. (USA)
It was a mission to catch a comet and land a probe on it. It was from the European Space Agency with support from NASA, and it took 10 years to land on the comet.
August 4, 2007
Pheonix went to Mars to study the martian ice, soil, and the atmosphere. It was launched by NASA and when it entered the martian atmosphere, it was called the " 7 minutes of terror ". (USA)