Much to most people's surprise, Stephen Hawking has assured other scientists some time ago that what we call aliens have often visited the earth.
With his mechanical voice and appearance, Stephen Hawking almost appears as an alien himself. However, when he talks most scientists and professionals listen.
"All the phenomenon we behold year after year cannot be explained totally. A certain percentage has to be authentic visitors from another planet."
"People think that because the technology to get them here, means they can conquer us easily, but that is a wrong idea"
So why do they not interact with human beings?
"They have many times. However, because we are warlike beings, we are shunned."
"We have a great weapon that they cannot overcome."
Asked if it's atomic energy, Hawkins smiled.
"No, they are depending on atomic energy to cause us to eliminate ourselves. Our great weapon is oxygen. It is rare in itself and the mixture we have, which is perfect for us, would destroy them. They could not handle it."
So they are real?
"Of course, but they cannot afford to reveal themselves openly. We would want whatever they have and they do not want us to have it. They do not want us to explore!"