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|Number of cells||9|
|Discovered by||John Conway|
|Year of discovery||1970|
The lightweight spaceship (or LWSS for short or small fish) is the smallest known orthogonally moving spaceship, and the second most common spaceship (after the glider). It moves at c/2 and has period 4. It was found by John Conway in 1970.
- "Small fish". The Life Lexicon. Stephen Silver. Retrieved on June 10, 2009.