Many people believe that aliens exist, although there is currently no evidence that can explain the existence of aliens. One person who believes in the existence of aliens out there is NASA Administrator Bill Nelson. He's said it several times.
The first was in early July, Nelson said he believed humans do not live alone in the galaxy and there is other life out there after bringing US intelligence agencies reports of UFO sightings.
"Are we alone? Personally, I don't think we are alone," Nelson said, as quoted from The Hill.
"The universe is too big, the universe began to form 13.5 billion ago. It was quite large. But people are hungry for this kind of information and we will continue to search," he continued.
"When it comes to the universe, remember, the universe is huge. We have a program at NASA called search for extraterrestrial intelligence (SETI). But so far, we haven't received any communication from anything smart," he added.
Then recently, he again stated the same thing. He said that UFOs could be alien technology. Not only that, he discussed about parallel worlds.
Many people reported seeing UFOs, including United States Air Force pilots. So far, it is not known at all who is behind the UFO.
"I spoke to the pilots and they knew they had seen something, their radar was locked on it. And they didn't know what it was. We didn't know either. We hope it's not our enemy on Earth who has such technology," he said. .
He also did not want to rule out the possibility that the UFO really was an alien vehicle. "That thing is something. So it's a mission we're always on the lookout for. Who's out there? Who are we? How did we get here? How did we become who we are today?" he said.
"How did we evolve? How did we become civilized? And do the same conditions exist out there in a universe that has billions of other suns and billions of galaxies?" continued Nelson.
Even Nelson opened up the possibility of parallel worlds. There is indeed a theory that there are other universes that exist in other dimensions although it is very difficult to prove the truth.
"Today there is even a theory that there may be other universes (parallel worlds). And if that is indeed the case, who am I to say that Earth is the only location for a civilized and organized life form like ours?" asked the NASA boss.
