Talk:Disk/@comment-4501235-20111021004502

You don't need disks to assemble (craft) things, but if you want to collect all of them you'll need to kill a lot of Astronauts. Since you've found this wiki, disks are now pretty much useless to you. Throw them down a pit or something so they don't clutter your inventory. Or leave them where the fall on the ground. Disks never disappear so they can serve as a location marker of where you have encountered Astronauts before. They can also be seen at a great distance, even in areas where the terrain hasn't generated, so they can help you in finding your way around your moon. When they are really far away they will look like stars, but you'll recognize them because the won't move in the sky like stars do.