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  1. St. Louis, at the joining of mighty rivers. Gateway to the West
  2. Wiesbaden and Mainz, straddling the dark Rhine in late winter white snow and cloud
  3. Jupiters moon Lo
  4. Aswan Dam, Egypt
  5. CRS-16 Mission, Falcon 9 Liftoff, Cape Canaveral Air Force Station, Florida
  6. The Blast
  7. Saturn II
  8. Messier 45, The Pleiades
  9. The cosmos is a place of outstanding natural beauty and wonder
  10. The Soyuz TMA13 spacecraft launches from the Baikonur Cosmodrome in Kazakhstan
  11. IC 1805, the Heart Nebula
  12. Ius Chasma a large canyon on Mars in the western region of Valles Marineris
  13. Valles Marineris the Grand Canyon of Mars
  14. A planet and its moon resisting the relentless heat of the giant orange sun Pollux
  15. Philadelphia, PA - the well-lit City of Liberty, Rocky, Brotherly Love and Cheese Steak
  16. Moon Child II
  17. Phases of the Moon
  18. Space Shuttle Endeavours payload bay
  19. A diagram illustrating the parts of Earths atmosphere
  20. Andromeda Galaxy
  21. The Sombrero Galaxy
  22. Caught In A Blackhole
  23. Boston, you are a beautiful harbor city
  24. Falcon Heavy Launch Vehicle At Night, Kennedy Space Center, Florida
  25. Outer Space
  26. The Crab Nebula
  27. Layers exposed at Polar Canyon
  28. Globular cluster M22 in the constellation Sagittarius
  29. The International Space Station in orbit above Earth
  30. Total solar eclipse, 1878
  31. Messier 27, the Dumbbell Nebula
  32. The Plough asterism in Ursa Major
  33. Mecca
  34. Heavily cratered highlands on the surface of Mars
  35. Orion and the Winter Triangle stars
  36. Star Fishing
  37. BFR (Big Falcon Rocket) Passing The Moon
  38. Bouquet Barnstar I
  39. Astronauts performing work on a space station while orbiting Earth
  40. Moon Walk
  41. The Moon and Jupiter in a very close conjunction
  42. A possible newfound planet spins through a clearing
  43. A planet's population fleas in panic from a massive black hole
  44. Space Shuttle Atlantis lifts off from its launch pad
  45. A binary star system consisting of a red giant and a white dwarf
  46. One Last Dance
  47. Technicians Wanted to Engineer our Future on Mars
  48. Teach on Mars and its Moons