Sparky Sparky Boom Man

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Across
  1. 4. A proposed explanation for an observation. An educated guess which forms a basis for a test.
  2. 6. sEstablished in 1958 as the government agency responsible for the United States of America’s space program and long-term general aerospace research. A civilian organization, it conducts or oversees research into both civilian and military aerospace systems.
  3. 8. Tunnels and caves formed by lava movement in the moon's distant past. These tubes can serve as shelter from meteorites, radiation, and extreme temperatures.
  4. 10. The locus of all points in the plane at which the sum of the distances from a fixed pair of points is a given constant.
  5. 11. A path described by one body in its revolution about another.
  6. 12. The science of getting ships, aircraft, or spacecraft from place to place.
  7. 13. Large, dark plains formed by volcanic eruptions. Latin for "seas," early astronomers thought these dark areas on the moon were filled with water. 16% of the moon's surface is covered in maria.
  8. 14. A vehicle capable of sustaining a person above the terrestrial atmosphere.
Down
  1. 1. A joint project of the Canadian Space Agency (CSA/ASC), European Space Agency (ESA), Japan Aerospace Exploration Agency (JAXA), Russian Federal Space Agency, and the U.S.' National Aeronautics and Space Administration (NASA). The ISS represents a permanent human presence in space: it has been manned with a crew of at least two since November 2, 2000. The space station is located in orbit around the Earth at an altitude of approximately 360 km, a type of orbit usually termed low Earth orbit.
  2. 2. A state of very weak gravity.
  3. 3. The mechanical coupling of two or more human-made orbiting objects.
  4. 5. A bowl-shaped depression formed in the soft soil of the moon by the impact of a meteorite or other object.
  5. 7. A fixed point in a material body through which the resultant force of gravitational attraction acts.
  6. 9. In the U.S., a person who rides in a space vehicle.
  7. 15. A fixed or adjustable vane or airfoil affixed longitudinally to an aerodynamically or ballistically designed body for stabilizing purposes.