space shooter deleting asteroid after moving to prefab

This is my first post so here’s hoping it’s in the right location. I’ve just finished the space shooter tutorial section on explosions. The first error kind of explained itself in the error log. In unity 5, you have to check both the “Convex” and “is trigger” on the player mesh collider. This was not mentioned in the tutorial. But other than that, all works well until the very last step. According to the tut, we’re supposed to move the asteroid from hierarchy to the prefab folder, then delete the asteroid object from the hierarchy all together. However, when you go to play mode, the asteroid disappears all together and the spaceship is just sitting there lonely. Was there something i missed?

I guess I spoke too soon. Sorry for that. It seems it is cleared up in the next tut in the series, although it seems the asteroid should still be showing in game play since it has a specific location from which to start. At any rate, it’s now solved.