Birthday Space Adventure!

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Across
  1. 2. Neptune’s moon, Triton, orbits the planet _____ and is the only large moon of any of the planets that does this
  2. 4. The number of planets known as gas giants
  3. 5. Largest canyon system in the solar system (on Mars)
  4. 7. National _____ and Space Administration
  5. 10. three main types of galaxies: elliptical, spiral, and _____
  6. 12. Another planet that doesn’t have moons
  7. 13. If you had no spacesuit, you would die in ___ seconds. Cheery.
  8. 15. Can appear up to 14 percent larger and 30 percent brighter than a full moon
  9. 16. The only British satellite to be launched using a British rocket
  10. 17. Name of the first animal to make an orbital spaceflight around the Earth
  11. 19. Potentially farthest star yet discovered (APOD April 6)
  12. 26. A small rocky body orbiting the sun
  13. 27. One ____ Earth’s could fit inside the sun
  14. 28. Recent TV show on Netflix starring Steve Carell, related to space
  15. 30. NASA’s first satellite ___ 1
  16. 32. There are more _____ on Earth than starts in the Milky Way
  17. 33. Smallest dwarf planet
  18. 38. Jupiter’s second largest moon
  19. 41. Closest active galaxy to Earth, ___ A (APOD March 17)
  20. 42. One of two planets that doesn’t have moons
  21. 44. APOD April 13, 2022 – Over this national monument in Wyoming
  22. 46. Related to space, not science, gets you pretty riled up when people believe in it
  23. 47. Sunset color on Mars
Down
  1. 1. Even in an ____, a trip to Pluto would take about 800 years
  2. 3. April 12, 1981 - NASA sends its first shuttle into space, the _____
  3. 6. Spirit, Opportunity, Curiosity, Perseverance, and ___
  4. 8. APOD April 17, 2018 - Except for the rings of Saturn the ___ (M57) is probably the most famous celestial band
  5. 9. First food eaten in space by an American astronaut
  6. 11. The abbreviation of the governing body for space laws.
  7. 14. On Venus, it snows ___ and rains sulfuric acid
  8. 18. Although there is no official solid boundary for where space begins, the ____ line sits at 62 miles above sea-level and is conventionally used as the start of outer space in space treaties or for aerospace records keeping
  9. 20. Your astrological sign
  10. 21. Comet that is next projected to be visible on Earth in 2061
  11. 22. The well-composed night skyscape from APOD April 17, 2020 was recorded from ___, a municipality on the island of La Palma, Canary Islands.
  12. 23. is an extremely luminous active galactic nucleus, powered by a supermassive black hole
  13. 24. A cold and dark area of our Solar System which contains thousands of comets, asteroids and other objects – the ____ belt
  14. 25. The final frontier
  15. 29. One of Saturn’s smaller moons that reflects 90% of the Sun’s light
  16. 31. Planet with fastest winds in solar system
  17. 34. APOD April 17, 2021 - The Flame Nebula is a stand out in optical images of the dusty, crowded star forming regions toward Orion's belt and the easternmost belt star ____
  18. 35. The first celestial object identified as being spiral
  19. 36. Main feature of today’s APOD (April 17, 2022)
  20. 37. APOD April 17, 2019 - One of the brightest galaxies in planet Earth's sky is similar in size to our Milky Way Galaxy: big, beautiful ___ 81
  21. 39. 2001: A Space _____
  22. 40. mons Largest volcano in solar system
  23. 43. APOD April 17, 2016 – Known informally as ______ clouds, they can be stunning in appearance, unusual in occurrence, are relatively unstudied, and have even been suggested as a new type of cloud. Good luck with this one. Very cool pic, though.
  24. 45. APOD April 8, 2022 - Also known as C/1995 O1, _____ is recognized as one of the most compositionally pristine comets to pass through the inner Solar System.