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  1. Antibiotic destroying a bacterium
  2. Laboratory flask and circuit board
  3. Seahorse skeleton
  4. San Luis, Argentina - USGS Earth as Art
  5. Bears
  6. Wire Frame Render of a Clock Mechanism
  7. Robot arm picks tray of DNA-containing bacteria
  8. Row of spectrophotometer cells
  9. Rubber and gutta-percha molecular models
  10. Muscles of lower leg
  11. Hazardous chemicals
  12. First V-2 rocket launch, artwork
  13. Atom, artwork
  14. Early video phone system, 1930
  15. Tibetan cosmology, 18th century artwork
  16. Quark structure of silicon atom nucleus
  17. Heart
  18. Early telephone, historical artwork
  19. HIV virus particles, artwork
  20. Artwork of structures within a human nerve
  21. Organic synthesis
  22. Breast cancer cells, SEM
  23. Cell division
  24. Estimated Number Of Known Living Species
  25. Detached blood clot, artwork
  26. Structure of a human heart, artwork
  27. Brain meninges
  28. Colorized scanning electron micrograph of filamentous Ebola virus particles
  29. Meandering Mississippi - USGS Earth as Art
  30. The sun sets behind a row of spinning windmills or wind turbines
  31. Anterior neck and facial muscles of the human head (with labels)
  32. Brain with skull in situ - lateral view. nervous system
  33. Osteoporosis
  34. Kidney glomeruli, SEM
  35. Hughes' printing telegraph
  36. Printing Press
  37. 5s electron orbital
  38. V-2 rocket prior to first US launch
  39. Woman holding ultrasonograph photo of baby
  40. Cobalt chloride crystals magnified 40x
  41. Upper body bones, computer artwork.
  42. Lie detector test
  43. Noctis Labyrinthus, Mars
  44. Microscopic view of Penicillium expansum
  45. Medical testing
  46. Illustration of a calculus or stone in the kidney
  47. Nerve synapse, artwork
  48. The Sun