Hue

hue The Helix Nebula and IC 1805 are cosmic clouds shaped like an eye and a heart.

hue A hypothetical quasi-star in the early universe got its energy from a central black hole.

hue The 1648 Peace of Westphalia established state authority, and collapsing empires later shaped modern national borders.

hue The star Dubhe is 280 million years old and has already burned all its core hydrogen.