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  1. Caffeine crystals, light micrograph
  2. Dandelion seed head
  3. Singapore City, Marina at night, view from the Singapore Flyer
  4. Cell
  5. Looking for the approaching Soyuz
  6. Photomicroscopic close up of a snowflake crystal
  7. Long Horned Beetle Diastocera Wallichi
  8. Ice Stars - USGS Earth as Art
  9. Engineering
  10. Crystal
  11. Strait of Gibraltar
  12. Bluebells (Hyacinthoides non-scripta)
  13. The Small Magellanic Cloud, With Globular Cluster NGC 104 At Right
  14. Italy, Sicily, Siracusa, Monte Lauro, wind turbine
  15. Soap bubbles
  16. Period 3 elements