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Library of Past Questions

Satellites & Space Technology

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Library of Past Questions and Answers

    Rockets and propulsion

Please note that this topic is somewhat outside our areas of expertise (we are astrophysicists and not "Rocket Scientists").
  1. What are the types of rocket propulsion?

  2. What's in rocket fuel ?

  3. What kind of fuel is used in spacecraft?

  4. Do today's rockets use the same fuel as the Apollo missions used in the late 60's and early 70's?

  5. How fast do our current spacecraft travel?

  6. Is a solar powered rocket possible?

  7. Can Helium particles push a solar sail better than sunlight?

  8. Is it possible for a satellite to piggy-back onto a comet?

  9. Can you tell me about new space propulsion systems?

  10. Tell me about ion propulsion

  11. Is an anti-matter or nuclear propulsion drive possible?

  1. How many artificial satellites are there and who owns them?

  2. What is the altitude required for a geostationary orbit?

  3. What are the conditions and requirements for a Sun-synchronous satellite orbit?

  4. Where can I find information on the newest missions?

  5. Can you help me find information on two Soviet Satellites that reentered our atmosphere?

    Future Possibilities

  1. Would you have any information on possible NASA projects to do astronomy from the Moon?

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  • Imagine the Universe is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Nicholas White (Director), within the Exploration of the Universe Division (EUD) at NASA's Goddard Space Flight Center.

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