Neil deGrasse Tyson Quotes

I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth.

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

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

Perhaps, as some wit remarked, the best proof that there is Intelligent Life in Outer Space is the fact it hasn't come here. Well, it can't hide forever - one day we will overhear it.

With 'Extinction Machine,' I wanted to start some conversations about whether we're alone in the universe and what that might mean.

I think there's all kinds of life out there, including intelligent life, but the reason we haven't found each other is because of vast distances.

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.

It's naive to think we're the only living beings in this universe.

I do believe there's life other than on our planet.

We may be living at that moment, on the cusp, when we go from being a species that feels a kind of loneliness in the cosmos to actually one sometime in the not too distant future being able to confirm the existence of other intelligent life.

When I was a student almost nobody thought there was any life beyond Earth. Today it's fashionable to say that there is life all over the place, that the universe is teeming with it, but the scientific facts on the ground haven't really changed.

I believe that there may be intelligent life on other planets.

No astrophysicist would deny the possibility of life. I think we're not creative enough to imagine what life would be like on another planet. Show me a dead alien. Better yet, show me a live one!

This planet seems to be in such sorry shape. And I can't ever think about the rest of the universe without coming back home and thinking what the implications for life here would be if we were to really have some definitive proof of extraterrestrial life.

I don't think we are the only planet that has life.

It's odd that invoking the possibility of alien influences should itself be a sign of madness. I don't see the need for it to explain history on earth, but I can't see any reason why the universe shouldn't be full of life.

The statistics of life out there and the statistics of intelligent beings and advanced civilization is a certainty, the way I look at it. that It has not been accepted, because we've been in an anthropocentric era.

How can the human race be, like, the only living form in the universe? There have to be other life forms out there. I believe it.

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.

Aliens are definitely real.

Within the scientific community, there is healthy skepticism. And the question is, 'How do you ever get to a meaningful null result? How long and how hard do SETI scientists have to look for extraterrestrial intelligence and find nothing before they say, 'There is nothing. We are alone.'

It would be selfish to believe that we are the only intelligent life in the universe.

We know that within the solar system is very unlikely there will be anything more advanced than microbial life, but if we think outside the solar system and then, the distances are, of course, immense, then there could be Earth-like planets with more advanced form of life.

Is E.T. out there? Well, I work at the SETI Institute. That's almost my name. SETI: Search for Extraterrestrial Intelligence. In other words, I look for aliens, and when I tell people that at a cocktail party, they usually look at me with a mildly incredulous look on their face. I try to keep my own face somewhat dispassionate.

Another random thing I do is the search for extraterrestrial intelligence, or SETI. And you may be familiar with the movie 'Contact,' which sort of popularized that. It turns out there are real people who go out and search for extraterrestrials in a very scientific way.