In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color.... Read more »
So, have you ever wondered why we have seasons? Or maybe where the sun goes when it’s night time? *Hint: It doesn’t actually go anywhere* In this episode of Crash Course Kids,... Read more »
Updated with graphics fixed. Thanks for pointing that out! Ever wonder why we have seasons? A lot of people think it’s because the Earth gets further away from the sun in winter,... Read more »