Aether

Aether, æther or ether may refer to:

Historical science and mythology

Aether (mythology), the personification of the bright upper sky
Aether (classical element), the material believed to fill the universe above the terrestrial sphere
- Aether theories, proposing space-filling substance that propagates electromagnetic or gravitational forces
- Luminiferous aether, the postulated medium for the propagation of light

Ether, a class of chemical compounds
- Diethyl ether, or simply ether, an organic compound
Petroleum ether, a petroleum fraction (not classified as an ether)
AETHER, an atmospheric radiative transfer algorithm
Efir, now called "Sfera," is a telecommunication project of the Russian Federation aiming to create a national Satellite constellation

Aether, a plot device of the Marvel Cinematic Universe Infinity Stones
Aether, an object in Aion (video game)
Aether, a character in 2020 video game Genshin Impact
Aether, an element of the Kaladesh expansion block of Magic: The Gathering
Aether, a fictional planet in 2004 video game Metroid Prime 2: Echoes
Aether, an element in 2012 video game Phantasy Star Online 2
Ether, the building block of life in the Xenoblade Chronicles universe
Aether, a dimension added in a mod for the video game Minecraft
Aether, an ancient variety of entities present in Brandon Sanderson’s cosmere universe
Ether, one of the five attributes in 2024 video game Zenless Zone Zero