Seth Shostak Quotes

I believe in aliens. I think it would be way too selfish of us as mankind to believe we are the only lifeforms in the universe.

I think it quite likely that we are the only civilization within several hundred light years; otherwise we would have heard radio waves.

To me, it's the kind of interesting question the human race should be investing in. Is there intelligent life out there? Are there other beings out there?

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

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.

Spectroscopy can probably answer the question, 'Is there anybody out there?' Are we alone?

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

It's just too egotistical to think that we are the only lifeform in the universe.

Will searching for distant messages work? Is there intelligent life out there? The SETI effort is worth continuing, but our common-sense beacons approach seems more likely to answer those questions.

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

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.

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

Galactic plankton is undoubtedly out there, but it's statistically highly likely there's also another intelligent civilisation out there somewhere. Unfortunately, the distances and time differences are so great, communication might remain impossible.

Among the plausible niches for extraterrestrial life in our solar system, the clouds of Venus are among the most accessible and the least well explained.

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

Our field is very focused on finding Earth 2.0, and anything we can do to narrow the search is helpful.

Human beings have long wondered whether they are alone in the universe.

I'm an astrobiologist, and I come from a planetary science background, so in a very broad sense, I study the evolution of planetary environments.

I don't see why there is no intelligent alien life in the universe.

We're going to understand that there is life on other bodies in the solar system.

Stars, of course, are too hot to support life, so wherever life might exist in the universe, it has to be on planets or moons that are warmed, but not incinerated, by the stars they travel around.

The human race may be the only intelligent beings in the galaxy.

The math is dead simple: it seems that the frequency of planets able to support life is roughly one percent. In other words, a billion or more such worlds exist in our galaxy alone. That's a lot of acreage, and it takes industrial-strength credulity to believe it's all bleakly barren.

People quite often think of the question 'Are we alone in the universe?' in terms of other civilizations out there: life forms that have reached at least our level of technological development.