Tag: John Green

Speed of Light Thank You!

Dear citizens of the universe, You probably know that light can reach two hundred ninety nine thousand, seven hundred ninety two measly kilometers in a second, but did you also know that physics can now reach over two hundred ninety nine thousand, seven hundred ninety two amazing people in a minute? We’ve broken the speed

Light: Crash Course Astronomy #24

Hey, Phil Plait here and this is Crash Course Astronomy. In last week’s episode, I mentioned that nearly all the information we have about the Universe comes in the form of light. But how does that light get made? What can it tell us about these astronomical objects? And honestly, what is light? Here’s a