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Russia is first to reach the moon
The Luna 1 was the first spacecraft to ever reach the moon; it was sent out by the soviets in order to beat the U.S. in the space race. -
First human on the moon (sent by the U.S.)
The Apollo 11 was the first space flight to successfully have a human land on the moon and travel back to Earth safely. -
First U.S. space station
The Skylab launched by the U.S. was the first successful space station, having a workshop, a solar observatory, and things that humans need to survive. -
First surface images of Mars
This was the the first time that the U.S. had ever landed a probe onto a planet. Viking -
Voyager 1 Arrives at Saturn
The voyager 1 arrives at Saturn after 3 years and 2 months, collecting tons of pictures for NASA.