Dr. Blume commented, “We found no evidence that the variation of light color along a blue-yellow dimension, encoded by the cones, plays a relevant role in the human internal clock or sleep.

Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

Russian astronomers have conducted photometric observations of a unique extremely metal-poor luminous blue variable star ...

Complementary colors live on opposite sides of the color wheel. Imagine red and green, blue and orange, or yellow and purple. Or move a half step over on the wheel, and combine a yellow-green color ...