Astronut profile image73


Joined 10 years ago from The Moon

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  • Principles of Space Flight

    Principles of Space Flight

    4 years ago

    To accomplish the launching of even the simplest satellite into orbit around the earth, scientists must deal with several complex factors. These include the earth's gravitational attraction, the control of the satellite after launch, and the nature...

  • Hazards of Space Flight

    Hazards of Space Flight

    4 years ago

    Man has evolved in the sheltered environment of the planet earth, where a dense atmosphere protects and sustains him. The environment in space, however, far from being protective, is extremely hostile. Its vacuum, temperature extremes, and radiation...

  • Space Navigation, Guidance and Control

    Space Navigation, Guidance and Control

    4 years ago

    The navigation system of a spacecraft determines both the position and the velocity of the vehicle. It may make these determinations by means of an internal inertial guidance system, radio signals transmitted from the earth or from the vehicle...

  • Spacecraft Design

    Spacecraft Design

    4 years ago

    The elements of design of a spacecraft are governed by its mission and operational requirements. Thus the wide panorama of different flight projects undertaken by the United States and the Soviet Union has resulted in widely varying spacecraft...

  • Space Flight Achievements

    Space Flight Achievements

    4 years ago

    The opportunity for achievements presented itself in the International Geophysical Year. The IGY was a program for international cooperation among meteorologists, geophysicists, and other scientists in obtaining scientific data on a worldwide basis...

  • One Giant Leap For Mankind...

    One Giant Leap For Mankind...

    4 years ago

    Man's conquest of space has required coping not only with a hostile environment but also with the effects of space travel itself. In leaving the earth, the space traveler leaves a dense, life-sustaining atmosphere and ascends through increasingly...

  • The Apollo Programme

    The Apollo Programme

    4 years ago

    In 1961 President John F. Kennedy announced that the United States would land a man on the Moon before 1970. The method chosen by the National Aeronautics and Space Administration was known as the "lunar-orbit rendezvous" method. A Saturn V rocket...


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