Stars & Spaceflight

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Across
  1. 3. This series of missions put Americans on the moon between 1969 and 1972.
  2. 4. This element builds up as the “ash” in the core of stars as a result of fusion.
  3. 10. The official name was the “Space Transport System,” but everyone just called it by this slang name.
  4. 11. A french word for “meet at an arranged time and place,” also used for when two spacecraft meet in orbit.
  5. 12. Each step or part in a spacecraft is described using this term.
  6. 15. Our first nuclear powered rover on the surface of Mars.
  7. 17. This term describes a star before it undergoes fusion.
  8. 18. The first man-made object in orbit was this Russian satellite, launched in 1957.
  9. 19. This cloud of gas a dust is the precursor to all stars.
  10. 21. To make a stable liquid, this element is cooled to -183 degrees Celsius.
  11. 23. This explosion is the result of the death of the largest stars.
  12. 25. This color dwarf star is a the most common kind of stellar remnant.
  13. 32. This metal is the heaviest element that can be made during fusion inside stars.
  14. 33. This property describes the brightness of the star.
  15. 34. This initialism is used for the orbits of the lowest altitude craft around the earth.
  16. 35. The first person in space was this Russian cosmonaut and former fighter pilot.
  17. 36. This mission put the first rover on the surface of Mars in 1997.
  18. 38. This color dwarf star doesn’t have enough mass to ignite fusion.
  19. 39. This kind of nebula is the result of a red giant shedding its outer layers.
Down
  1. 1. This is the name for a rocket that helps the first stage of a rocket’s flight.
  2. 2. This kind of star is made out of neutrally charged degenerate matter.
  3. 5. Named after the Roman god of the sun, this capsule put the first Americans into space.
  4. 6. This element along with Oxygen is key to a liquid fueled rocket’s flight.
  5. 7. This color star includes the hottest known stars, in the O, B, and A classes.
  6. 8. This nuclear process creates light in the core of stars.
  7. 9. This spacetime warping object is the remnant left behind by the largest stars.
  8. 13. These astronauts traveled to space in pairs to practice techniques needed for Apollo.
  9. 14. The earliest rockets, along with modern fireworks, use this kind of fuel.
  10. 16. This color dwarf star includes our own sun, Sol.
  11. 20. This acronym is used when you get out of your spacecraft and walk (or float) around.
  12. 22. This color dwarf star is both the most common and smallest mass of all star types.
  13. 24. This term is used for an elliptical path around a body in space.
  14. 26. This property can be determined from the color of light emitted by the star.
  15. 27. This center strip of the Hertzsprung-Russell Diagram contains stairs during their “adulthood.”
  16. 28. This pair of missions took the “Grand Tour” of the outer planets of our Solar System.
  17. 29. These 1970’s landers gave us the first pictures from the Martian surface.
  18. 30. If your flight doesn’t quite get to a full orbit, you’d describe it with this word.
  19. 31. A generic term for a spacecraft, often including “liquid fuel” or “solid fuel.”
  20. 37. This element is the fuel for fusion during the main sequence portion of a star’s life.