photos taken through a microscope with my phone (with a little bit of editing)
Moon / HeLa cells
Moon / ???
Death Star / probably a HeLa cell
Mercury / onion or garlic root cap
Jupyter / Utricularia, a carnivorous plant with underwater traps
Uranus / some plant's stem cross-section stained with a dye
Planet X / Utricularia again
Dione / garlic root cap cells stained with a dye with visible chromosomes
Green Planet / probably a close up of a Pistia leaf
Asteroid / a lichen
Titan / a cross section of a lichen
Mars / a lichen on wood
Unnamed 1 / erio-T indicator and EDTA in hard water
all of the images above are licensed under CC BY-SA 4.0