Have you ever found a new hole?
One day, scientists looked at Moon pictures.
Something was very different.
A large new hole was there.
It is a crater.
That means a hole from a hard hit.
A space rock hit the Moon.
It is as wide as two football fields. (science.nasa.gov)
Imagine a ball hitting soft sand.
Sand jumps, and a small hole stays.
Now, here is the surprise.
The Moon has almost no air.
So air cannot slow space rocks.
The Moon looks quiet and still.
But it can change very fast.
Even a quiet world can surprise us.










