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An energy being or astral being is a theoretical life form that is composed of energy rather than matter. They appear in myths/legends, paranormal/UFO accounts, and in various works of speculative fiction.
Energy beings are typically rendered as a translucent glowing fluid or as a collection of flames or electrical sparks or bolts; somewhat in common with the representations of ghosts.
Energy beings have a variety of capacities. The Taelons (from Earth: Final Conflict) are barely more powerful than mortals, while others such as Star Trek's Q, Stargate SG-1's Ascended Ancients/Ori, Ben 10: Alien Force's Anodites, or the Meekrob from Invader Zim possess god-like powers.
In science fiction
- Vorlons (Babylon 5)
- Some of the First Ones (Babylon 5)
- The extraterrestrial Paul in the science-fiction film of the same name, although not constructed of energy, can manipulate energy both telepathically and physically. He can repair damaged tissue in a form of resurrection, and he can also project an image of the Universe into a human mind and make them comprehend the immensity of space-time. His home galaxy is the Andromeda Galaxy, thus placing him in this category.
- Organians (Star Trek)
- Prophets and Pah Wraiths (Star Trek)
- The Q (Star Trek)
- Etherials from Marvel Comics
- Ascended people in Stargate SG-1
- Drej (Titan A.E.)
- C'tan (Warhammer 40,000)
- Naaru and Ethereals (World of Warcraft)
- The Taelons (Earth: Final Conflict)
- Gwen Tennyson, and her grandmother Verdona are Anodites from Ben 10: Alien Force
- Cirronians and possibly Vardians (Tracker)
- The astronaut David Bowman is transformed into a 'Star Child' at the conclusion of 2001 A Space Odyssey
- Kheldians and Nictus (City of Heroes).
- FMians, AMians, UMAs, and Wizards from Megaman Starforce which also have the ability to merge with a human in which form they can go between energy and physical.
- Andromeda (Heroes of Newerth)
- The Meekrob from Invader Zim
- The Embers of Muuat and the Ghosts of Creuss from Twilight Imperium
- The Zoni (Ratchet & Clank)
- Archons and Dark Archons in the StarCraft game franchise
- Zzzax (Marvel Comics)
- Pyron (Darkstalkers)
- Living Laser (Marvel Comics)
- Singularity in Marvel Comics
- Akira from Akira
- Yog, an amoeba-like Energy being from Space Amoeba
- Melllvar and his mother from Futurama
- Outsiders from XCOM: Enemy Unknown
- Bill Cipher (Gravity Falls)
- The pure intellectuals from the Skylark (series)
- The Novakid Race from the game Starbound.