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Across
  1. 4. Two spacecraft launched in 1977 to explore the outer planets; now in interstellar space.
  2. 7. A modern observatory launched in 2021 to study the early universe, exoplanets, and galaxy formation.
  3. 8. The first human in space, launched by the USSR aboard Vostok 1 in 1961.
  4. 10. A tragic mission that ended in a deadly cabin fire during testing in 1967, killing three astronauts.
  5. 11. The first person to walk on the Moon during Apollo 11 in 1969; known for the quote, “That’s one small step for man, one giant leap for mankind.”
  6. 13. The first American to orbit Earth, completing three orbits aboard Friendship 7 in 1962 during Project Mercury.
Down
  1. 1. The first artificial satellite, launched by the Soviet Union in 1957, triggering the Space Race.
  2. 2. (National Aeronautics and Space Administration) – The U.S. agency founded in 1958 to lead space exploration efforts.
  3. 3. – An instrument that magnifies distant objects by collecting light; Galileo used it to discover Jupiter’s moons, the Moon’s surface, and phases of Venus.
  4. 5. – The U.S.'s first human spaceflight program, aimed at putting a man in orbit.
  5. 6. Follow-up to Mercury, it tested key skills like spacewalking and docking to prepare for Moon missions.
  6. 9. NASA’s current Moon exploration program aiming to return humans to the lunar surface and prepare for Mars missions.
  7. 12. The NASA mission that landed the first humans on the Moon in 1969.