Dr. Universe: How do earthquakes happen?
seabertson
We’ve had a lot of earthquakes on our planet this year. Maybe you’ve learned about them from the news or felt one shaking up your own neighborhood. Earthquakes can happen in a few different ways.
First, it is important to know a bit about the Earth’s outer layer, or crust. The crust is made of seven big pieces called “plates.” They are about 60 miles thick and sort of float on the molten rock beneath them. That’s what I found out from my friend Sean Long, a WSU geology professor who knows a lot about earthquakes. » More …
There’s nothing quite like making popcorn: the snapping kernels, the warm buttery smell, and the knowledge that a delicious snack will be ready in minutes. It gives you some good time to think and wonder: how did humans first start doing this?
When you look up at the night sky, it can feel like the universe is a big blanket of stars above you. But unlike a blanket, the universe doesn’t have corners and edges. Far beyond what humans can see, the universe keeps going. As far as humans know, it never stops. To learn more, I went straight to my friend 
Humans come into the world crying, but that’s actually a good thing. In a way, babies start communicating from the moment they are born. Of course, it can be hard for their caregivers to know exactly what they mean with all those cries.
Humans have hair on their heads, arms, and even the face. If you feel your face, you might feel some small, fuzzy hairs on your cheeks and forehead. But the hair of your eyebrows is usually a bit thicker.
Ever since I was a kitten, I’ve loved picking up big maple leaves in the fall. I’d take them home, put them under a piece of paper, and rub the side of a crayon over the top. It makes a great print of the leaf.
Our moon is one of the brightest objects in the night sky. But unlike a lamp or our sun, the moon doesn’t produce its own light.