Lesson 6: Space Exploration Vocabulary

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Across
  1. 3. telescopes that collect radio waves and microwaves using an antenna that resembles a satellite dish.
  2. 6. Launched in 1977, has traveled beyond our solar system.
  3. 7. the first optical space-reflecting telescope that collects light at all wavelengths, giving us a clear view of the universe.
  4. 8. a telescope which uses a concave mirror to focus light.
  5. 9. the first artificial satellite launched by the Soviet Union in 1957.
Down
  1. 1. the study of life in the universe.
  2. 2. uncrewed spacecraft sent to explore distant objects in the solar system, like planets, moons, and comets.
  3. 3. propel themselves by ejecting exhaust gases, creating thrust that pushes them forward.
  4. 4. an object that orbits another object in space.
  5. 5. a telescope which uses convex lenses to concentrate light from distant objects