He theorized the use of rockets for space travel.
Tsiolkovsky
The Space Race was a competition for national power between these two entities.
USA and U.S.S.R.
This US President proclaimed the goal to land a man on the moon in 1961.
President Kennedy
This joint project between many nations focuses on research and science.
International Space Station (ISS)
In 1926, this pioneer built the first liquid-fueled rockets.
Robert Goddard
Launched in 1957, this was the first artificial satellite.
Sputnik 1
This is the specific date Neil Armstrong and Buzz Aldrin landed on the moon.
July 20, 1969
The Space Shuttle was in use during these years.
1981 - 2011
This pioneer provided the early calculations of space travel physics.
Hermann Oberth
In 1958, the USA launched this, its first artificial satellite.
Explorer 1
This historic mission successfully landed humans on the moon.
Apollo 11
The Space Shuttle helped build this major orbital research facility.
The ISS
The first stars were documented this many years ago.
30,000 years
He was the first man in space, sent by the U.S.S.R. in 1961.
Yury Gagarin
The moon landing is widely considered the end of this era.
The Space Race
This was the primary design feature of the Space Shuttle, carrying cargo and crew.
Reusable
Humans have used stars for this purpose throughout time to travel land and sea.
Navigation
He was the first American man in space.
Alan Shepard
One of the two men who first landed on the moon (besides Neil Armstrong).
Buzz Aldrin
Current space exploration has shifted from a 'race' to this.
Cooperation