A laser is a gun that fires photons (i.e. spaceships moving at the speed of light). Lasers are not possible in Conway's Game of Life, but they do exist in other Life-like rules, for example Seeds.
x = 18, y = 31, rule = B2/S
bobo10bobo$o3bo8bo3bo3$4bo8bo$4bo3b2o3bo2$7bo2bo$o16bo$o4bo6bo4bo$o16b
o$o5bo4bo5bo$7bo2bo$2bobo2bo2bo2bobo$4bob2o2b2obo2$o6bo2bo6bo$o6bo2bo
6bo$o16bo$o5b2o2b2o5bo$4bobo4bobo$2bo4bo2bo4bo$2bo3bo4bo3bo$4bo3b2o3bo
$bobo10bobo$o3bo8bo3bo$7bo2bo$8b2o2$4bobo4bobo$3bo3bo2bo3bo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ THUMBSIZE 2 ]] |
| p4 photon laser in Seeds (click above to open LifeViewer) |