Arsenic sulphide dissolved in a solution displays colorful random patterns after being spin-coated and baked on a chrome-evaporated glass slide.
Arbuscle of a mycorrhizal fungus within a root cell at 250 times magnification. By Mark Brundrett, University of Western Australia.
This image won 5th place in the 1989 Nikon Small World Competition. See more winners here.
25 Everyday Objects Under an Electron Microscope. Pictured above are cracked steel, cake sprinkles, and velcro. See more photos here.
Ondrej Pakan, from Myjava, Slovakia, captured the stunning series of microscopic insects following a downpour. Tiny droplets of water make the bugs take on an altogether different look - inflating them to a bigger size once they are covered in liquid. See more photos here.