This article is a stub. You can help The Expanse Wiki by expanding it.

Fuel Pellets.jpg

Fuel pellets are the power fuel used for the fusion reactors of almost every spacecraft, propelling the Epstein Drive.

Function[edit | edit source]

Fuel pellets bear a striking resemblence to the fuel pellets used in Inertial-Confinement Fusion reactors (ICF). They are most likely made out of isotopes of hydrogen and helium[1], and shot at by an array of high-energy lasers within the reactor chamber.[2] The lasers heat up the pellet to enormous temperatures, ultimately causing it to trigger a nuclear fusion reaction in the pellet.[2]

The pellet is fused entirely and then purposed as either a power source for the ship, or propellant for the ship's Epstein Drive.[2] However, the fusion process creates a large amount of infrared and other radiation.[3][4]

Media[edit | edit source]

See also[edit | edit source]


  1. The Expanse TV series - Season 3, Episode 2: "IFF" mentions Prospero Station on Io as being a former helium-3 refinery, possibly used to refine it to fuel pellets
  2. 2.0 2.1 2.2 The Expanse TV series - Season 4, Episode 6: "Displacement"
  3. The Expanse TV series - Season 1, Episode 8: "Salvage"
  4. The Expanse TV series - Season 2, Episode 13: "Caliban's War"
  5. 5.0 5.1 5.2 5.3 The Expanse TV Series - Season 4, Episode 6: "Displacement"
  6. 6.0 6.1 The Expanse TV Series - Season 4, Episode 10: "Cibola Burn"

External links[edit | edit source]

Community content is available under CC-BY-SA unless otherwise noted.