|View static image|
|Number of cells||15|
|Discovered by||John Conway|
|Year of discovery||1970|
An overweight spaceship (or OWSS for short) is a would-be spaceship similar to the lightweight spaceship, middleweight spaceship and heavyweight spaceship, but longer. On its own an overweight spaceship is unstable because the three cells at its top do not die off like the corresponding sparks at the top of the smaller spaceships. Nonetheless, it can be escorted by true spaceships to form a flotilla.
- Overweight spaceship at the Life Lexicon