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A tagalong (or less commonly a tugalong[1]) is an object that is not a spaceship by itself, but can be attached to one or more spaceships to form a larger spaceship. For example, Canada goose is a spaceship made by attaching a tagalong to the back of a glider. Well-known tagalongs include Schick engine, fly, sidecar and sparky.


A pushalong is a tagalong that is located at the front of the spaceship that it is attached to. Pushalong 1 is an example that was found by David Bell in 2005 that can be attached to the front of a middleweight spaceship.[2] Another pushalong can be seen at 114P6H1V0.

Still life tagalong

A still life tagalong
RLE: here

A still life tagalong is a tagalong that takes the form of a still life in at least one phase. An example is shown to the right in which the tagalong looks like a pond.[3] Certain other such reactions, such as a block being pulled by two sparkers of speed (1,0)c/p (p for period, p≥4), are known.[4]

See also


  1. "Tugalong". The Life Lexicon. Stephen Silver. Retrieved on May 14, 2009.
  2. "Pushalong". The Life Lexicon. Stephen Silver. Retrieved on May 22, 2009.
  3. "Still life tagalong". The Life Lexicon. Stephen Silver. Retrieved on May 22, 2009.
  4. Matthias Merzenich (July 26, 2019). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums

External links