Stephen Hawking Quotes

I always felt that if we ever encountered an alien species, they wouldn't look like us or even be humanoid, like 'E.T.'

Aliens are definitely real.

Each year, thousands of UFOs are sighted and reported, which is an impressive tally of unidentified aerial phenomena. Surveys show that roughly one-third of the populace believes that at least some of this sky show is due to extraterrestrial spacecraft, here to probe our airspace and, when that proves boring, our bodies.

I think that it would be unwise of us not to believe that there is life outside of us, intelligent life. And so I do believe in aliens.

I think obviously there is some kind of life form somewhere else. Whether it looks like the creature in 'Alien Autopsy,' I'm not sure.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

I know aliens from other worlds are required to arrive in New Mexico, but why stay there?

I've been saying for a long time that I'm hoping to find intelligent life in Washington.

Extraterrestrial intelligence could have sent DNA-seed packets out through space to plant life on hospitable planets such as earth.

Historically, I guess that's how science fiction works: you start by using aliens to think the unthinkable — and then, eventually, another writer, having grown a little more comfortable with the earlier notion, brings it into the human.

I've been asked about UFOs and I've said publicly I thought they were somebody else, some other civilization.

The question is being asked, 'Are we alone?' And though we now focus on that question we need to think beyond that to what if we're not alone? Then what becomes the next imperative question?

We can never prove that we're alone in the universe. But the Allen Telescope Array could prove that we're not.

I actually think the chances that we'll find E.T. are pretty good.

Since my own genome was sequenced, my software has been broadcast into space in the form of electromagnetic waves, carrying my genetic information far beyond Earth. Whether there is any creature out there capable of making sense of the instructions in my genome, well, that's another question.

I think space exploration is very important. I think there is very intelligent life on Mars. I believe that Martians are spying on us from the bottom of the ocean.

That would be such a life-changing thing, for us all to know that there are other beings out there who we could potentially communicate with, or maybe we are listening to a signal that they transmitted hundreds of millennia ago.

First and foremost, The Quiet Invasion is a first contact story. What would we do if we actually found evidence of alien life out there? It's also about politics.

Ethan Allen was convinced that every planet out there has its own intelligent extraterrestrials. And this, as you can imagine, is a radical, inspiring, but very unsettling, idea.

To my mathematical brain, the numbers alone make thinking about aliens perfectly rational. The real challenge is to work out what aliens might actually be like.

The first question we would ask if aliens landed on this planet is not, 'What does this mean for the economy or jobs?' It would be, 'Are they friendly or unfriendly?'

The surest sign that intelligent life exists elsewhere in the universe is that it has never tried to contact us.

I believe there's other forms of intelligence in the universe. I've seen and heard some pretty convincing UFO stuff. Besides, if we're the most intelligent things in the universe... well, that's just depressing.

I believe there's life on other planets, but I don't believe that UFOs are saucers from another world.

Part of the point of SETI has always been a search for answers about our own cosmic potential and destiny. If 'they' are out there, it means that there may be hope for us.