Rosey Posey 🌹<p>Today on <a href="https://lgbtqia.space/tags/Mosstodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>Mosstodon</span></a> we have "goblin gold" moss (Schistostega) - moss that appears to glow a green-gold colour! </p><p>It's evolved to live in very dark environments, and part of that adaption is that it's got cells that efficiently capture light, with the only the less useful green-gold wavelengths reflected back. </p><p>This is significant because these light absorbing cells are spherical, and much like the glass beads used in road signs or high-vis jackets, they're retroreflective, concentrating light and bouncing it back towards the source; this gives it a really unusual effect where the moss can 'glow' brightly or be almost indistinguishable from its surroundings depending on the angle of your head and the positioning of light sources</p>