|View static image|
|Number of cells||11, 15, 11, 15|
|Speed||[[:Category:Spaceships with speed c/2|c/2]]|
|Discovered by||John Conway|
|Year of discovery||1970|
Expression error: Unrecognized punctuation character ",".[[Category:Spaceships with speed c/2]] The middleweight spaceship (or MWSS for short) is the third most common spaceship (after the glider and lightweight spaceship). It was found by John Conway in 1970.
Middleweight spaceship at the Life Lexicon