Hello at thesky! I have an answer to your question, "is there anything faster than the speed of light?" Yes, a shadow can travel faster than c. The speed of dark doesn't have the same speed limit as the speed of light. Basically, a shadow can make a larger image as you see anytime you make a shadow puppet on a screen. If you were to move your hand at the speed of the light, the larger shadow puppet would have to move faster because it is larger and covers more distance. Great question, I hope people will check out the video below to see what I've explained here. Hope you don't mind me posting this video.

Check out this Vsauce video for a more in depth explanation