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  1. Sep 28, 2012 · On Oct. 4, 2007, the Space Age celebrated the 50th anniversary of the historic launch of Sputnik, the first artificial satellite, by the former Soviet Union.

    • In The Beginning
    • Animals in Space
    • Human Space Flight
    • Travelling with A Friend: Two-Person Missions
    • Shuttling Back and Forth
    • Looking Back and Facing Forward

    If the idea of blasting into outer space sounds absolutely amazing, then you are not alone. For a long time humans observed space from a distance, because travelling beyond our planet was not yet possible. It would be a while before technology allowed people to send objects into space. Human's first real step towards space exploration happened duri...

    Before human space missions, people needed to figure out one very important thing. Was it even possible for living things, such as animals, to survive in space? To find out, scientists sent animals into space to experience the effects of on living things. The first animals sent into space were fruit flies. They were aboard a United States V-2 rocke...

    For more than fifty years, people have been going into space themselves. These men and women are called . The word “astronaut” comes from ancient Greek words meaning ‘sailors of the stars’. Russians call their astronauts cosmonauts and the Chinese call theirs . Together, they command, pilot, or serve as a crew member of a spacecraft. Until recently...

    Voskhod Program

    The follow-up to the Soviet Vostok program was the Voskhod program. It included two manned missions using the Voskhod spacecraft and rocket. The main reason for this program was to put the first multi-person crew into orbit. The crew of Voskhod 1 were the first not to use spacesuits. They were also the first to carry a medical doctor into space. A final first of the program was the first spacewalk, or , by Alexey Leonov during the Voskhod 2 mission in 1965.

    Project Gemini

    Project Gemini was the second American human orbital spaceflight program. It used a two-person spacecraft to develop skills such as docking and spacewalks. Ten manned flights happened between 1965 and 1966. More than anything, the missions were to prepare astronauts for the upcoming Apollo program.The goal of this program was to get a man on the Moon.

    Apollo Program

    Having successfully sent multi-person crews into space and having landed probes on the Moon, the Soviet Union and United States were ready to send people to the Moon. This time, it was the American Apollo program that made it to the Moon first. Between 1969 and 1972, NASA sent 7 three-man missions to land on the surface of the Moon. These were the first and – so far – only human missions to another world. The program was off to a rocky start when, on January 27, 1967, a launch pad fire killed...

    The 1980s marked the beginning of the NASA Space Shuttle program. The Space Shuttles had the capacity for up to eight astronauts. It was a reusable space planethat launched like a rocket but landed like a glider. Six of these huge space planes were built and five flew in space over 30 years (1981-2011). Two tragic losses occurred during the space s...

    Looking back, incredible sacrifices were made and hard work put forth by many to advance human exploration. Including men and women space pioneers who braved the early flights, before many safety features were even developed. Facing forward, we have set our sights on going to Mars. We have had some successes already, but still have many issues to o...

  2. Space: The First Fifty Years chronicles the amazing advances and discoveries made during the momentous last half century, including the first manned spaceflight and first man in orbit, the first unmanned landing on the moon, the first craft to leave the Earth's orbit, the manned moon landings, the advent of the Space Shuttle, and the first ...

  3. 100 EARTH OBSERVATIONS FROM SPACE: THE FIRST 50 YEARS OF SCIENTIFIC ACHIEVEMENTS Other nations have also made significant contributions to which in turn affects the amount of carbon dioxide (CO2) the ­capacity to observe Earth from space.

  4. Over the past 50 years, thousands of satellites have been sent into space on missions to collect data about the Earth. Today, the ability to forecast weather, climate, and natural hazards depends critically on these satellite-based observations.

  5. Earth Observations from Space: The First 50 Years of Scientific Achievements. Washington, DC: The National Academies Press. doi: 10.17226/11991.

  6. Oct 2, 2007 · In honor of the 50th anniversary of Sputnik's Oct. 4, 1957 launch, SPACE.com presents a collection of stories on five decades of spaceflight.