Oh if you're into that kind of stuff, there are some pretty cool animated educational videos on those topics you can watch. They can serve to amuse you, provide a recap or even give you additional information. Here are some links:
Gamma Rays: https://www.youtube.com/watch?v=RLykC1VN7NY
Black...
omg that is horrible, no! We have not come to an agreement and slugs should never be hotdogs. Even the comments of that reddit post are weirded out! Just.. no lol