Thunderbird Methuselah (Game of Life)

[1micha.elok]

Did you check out https://conwaylife.com/wiki/Category:Patterns? I tried some of the space ships from that page in your program

In Conway’s Life, the spaceships glide,
Through grids where alien dreams reside.
If Galaga's swarm met their pixel parade,
A cosmic arcade would surely be made!