The 2021 winners: Cool Science Image Contest

Left: White matter, the connective nerve tissue of the brain, has been colored according to the predominant orientation of fibers — red, right-left; green, front-back; blue, up-down — in different regions of the human brain to reveal pathways traversing the regions. Understanding white matter organization may offer insights into normal brain development as well as into the study of neurological disorders. Jose Guerrero, postdoctoral fellow, Medical Physics; Andrew Alexander, professor, Medical Physics; Peter Ferrazzano professor, Pediatrics, Magnetic resonance imaging scanner. Right: The yellow connecting arms, called axons, of diseased human brain cells grow willy-nilly across boundaries of inhibitory chemicals (the red stripes). Healthy axons would precisely follow the dark lanes, giving researchers the opportunity to test the effects of disease-causing mutations on axon growth. Timothy Catlett graduate student, Cell and Molecular Biology; Timothy Gomez, professor, Neuroscience, Confocal microscope