A graduate student has created the first man-made biological leaf. It absorbs water and carbon dioxide to produce oxygen just like a plant. He did this by suspending chloroplasts in a mixture made out of silk protein. He believed it can be used for many things but the most striking one is the thought that it could be used for long distance space travel. Plants do not grow in space, but this synthetic material can be used to produce oxygen in a hostile environment. (Video)
spectrum: The Sun, photographed by Solar Dynamics Observatory, 28th August 2014.
10 frames; each frame is a composite of 3 images in different wavelengths. Here, I have used 3 wavelengths in the extreme UV range (17.1, 19.3, and 21.1 nm), for the blue, green, and red channels which usually represent visible light of about 475, 530, and 680 nm, respectively.