Earth. Fall/fell. rock . Asteroid. Skin. Pattern. Scientist. Disappear
Some scientists study space.
They look for skin made by the stars.
Sometimes rock fall from other planets and fly through space.
These rocks are called asteroid
A big one earth planet fall 65 million years ago.
Some people think this is why the dinosaurs disappear
Scientists have found dinosaur skeletons, but haven't found any dinosaur pattern