Darkness

mysterious non-luminous matter (and/or radiation) comprising most of the matter in our observable universe

right|thumb|250px|The Creation of Light by Gustave Doré

In Greek mythology, Erebus (; ), or Erebos, is the personification of darkness. In Hesiod's Theogony, he is the offspring of Chaos, and the father of Aether and Hemera (Day) by Nyx (Night); in other Greek cosmogonies, he is the father of Aether, Eros, and Metis, or the first ruler of the gods. In genealogies given by Roman authors, he begets a large progeny of personifications upon Nox (the Roman equivalent of Nyx), while in an Orphic theogony, he is the offspring of Chronos (Time).

ancient Egyptian deity

common fear or phobia among children and, to a varying degree, adults

alternative explanation of the non-Newtonian rotation of galaxies

area that restricts artificial light pollution

thumb|Threshold increment versus background luminance for various target diameters (in arcmin). Data from tables 4 and 8 of Blackwell (1946), plotted in Crumey (2014). The flat curves at low light indicate Eigengrau. thumb|An example of noise observed in the dark thumb|Another example of noise observed in the dark Eigengrau (German for 'intrinsic gray'; ), also called Eigenlicht (Dutch and German for 'intrinsic light'), dark light, or brain gray, is the uniform dark gray background color that many people report seeing in the absence of visible light.

darkened room where sexual activity can take place

Christian gospel episode of darkened sky

Knull () is a fictional character appearing in American comic books published by Marvel Comics, commonly in association with Venom and Carnage. He was later retroactively established as an unseen enemy of Thor and the Silver Surfer, as he was behind Gorr the God Butcher's mission to hunt down and kill various deities, in addition to having come into conflict with the Silver Surfer via a temporal black hole through time. The character is depicted as an evil deity who created the weapon known as All-Black the Necrosword and the alien races known as the Klyntar/Symbiotes and Exolons, reignin

slogan of the Washington Post

dark sky park in Slovakia