The real challenge is to work out what aliens might actually be like. — Stephen Hawking Copy Share Image
I think the human race doesn't have a future if it doesn't go into space. — Stephen Hawking Copy Share Image
Time can behave like another direction in space under extreme conditions. — Stephen Hawking Copy Share Image
The fastest manned vehicle in history was Apollo 10. It reached 25,000 mph. — Stephen Hawking Copy Share Image
“In space, no one can you scream; an in a black hole, no one can see you disappear” — Stephen Hawking Copy Share Image
I don't think the human race will survive the next thousand years, unless we spread into space. — Stephen Hawking Copy Share Image
I think it quite likely that we are the only civilization within several hundred light years; otherwise we would have heard radio… — Stephen Hawking Copy Share Image
Of course it is possible that UFO's really do contain aliens as many people believe, and the government is hushing it up — Stephen Hawking Copy Share Image
If the government is covering up knowledge of aliens, they are doing a better job of it than they do at anything… — Stephen Hawking Copy Share Image
I want to encourage public interest in space. I have never let my condition stop me. You only live once. — Stephen Hawking Copy Share Image
I am discounting the reports of UFOs. Why would they appear only to cranks and weirdos? — Stephen Hawking Copy Share Image
Because imaginary time behaves like another direction in space, histories in imaginary time can be closed surfaces, like the surface of the… — Stephen Hawking Copy Share Image
“Today will still yearn to know why we are here and where we came from. Humanity's deepest desire for knowledge is justification… — Stephen Hawking Copy Share Image
In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which… — Stephen Hawking Copy Share Image
I believe that the long-term future of the human race must be space and that it represents an important life insurance for… — Stephen Hawking Copy Share Image
[On President Bush's plan to get to Mars in 10 years] Stupid. Robots would do a better job and be much cheaper… — Stephen Hawking Copy Share Image
Sooner or later disasters such as an asteroid collision or a nuclear war could wipe us all out, But once we spread… — Stephen Hawking Copy Share Image
I don't think the human race will survive the next thousand years, unless we spread into space. There are too many accidents… — Stephen Hawking Copy Share Image
Bodies like the earth are not made to move on curved orbits by a force called gravity; instead, they follow the nearest… — Stephen Hawking Copy Share Image
We only have to look at ourselves to see how intelligent life might develop into something we wouldnt want to meet. I… — Stephen Hawking Copy Share Image
Our population and our use of the finite resources of planet Earth are growing exponentially, along with our technical ability to change… — Stephen Hawking Copy Share Image
Please join me in applauding the ESA - European Space Agency’s historic efforts with the Rosetta Mission and landing a spacecraft on… — Stephen Hawking Copy Share Image
Gravity is so strong that space is bent round onto itself, making it rather like the surface of the earth. If one… — Stephen Hawking Copy Share Image
If we can avoid disaster for the next two centuries, our species should be safe as we spread into space. If we… — Stephen Hawking Copy Share Image
Think of our DNA. In the last million years, our DNA hasn't changed at all. It's really much the same as it… — Stephen Hawking Copy Share Image
I think the human race doesn't have a future if we don't go into space. We need to expand our horizons beyond… — Stephen Hawking Copy Share Image
One can see from space how the human race has changed the Earth. Nearly all of the available land has been cleared… — Stephen Hawking Copy Share Image
It is impossible to imagine a four-dimensional space. I personally find it hard enough to visualize a three-dimensional space! — Stephen Hawking Copy Share Image
I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to… — Stephen Hawking Copy Share Image
Our only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space. — Stephen Hawking Copy Share Image
I have wanted to fly into space for many years, but never imagined it would really be feasible. — Stephen Hawking Copy Share Image
We have made remarkable progress in the last hundred years, but if we want to continue, our future is in space. — Stephen Hawking Copy Share Image
I think we have a good chance of surviving long enough to colonize the solar system. — Stephen Hawking Copy Share Image
It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose,… — Stephen Hawking Copy Share Image
I think [contacting an alien civilization] would be a disaster. The extraterrestrials would probably be far in advance of us. The history… — Stephen Hawking Copy Share Image
Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that… — Stephen Hawking Copy Share Image
Life on Earth is at the ever-increasing risk of being wiped out by a disaster, such as sudden global warming, nuclear war,… — Stephen Hawking Copy Share Image
The doctor who diagnosed me with ALS, or motor neuron disease, told me that it would kill me in two or three years. — Stephen Hawking Copy Share
The human race does not have a very good record of intelligent behavior. — Stephen Hawking Copy Share
“We have finally found something that doesn’t have a cause, because there was no time for a cause to exist in. For me this… — Stephen Hawking Copy Share
[On President Bush's plan to get to Mars in 10 years] Stupid. Robots would do a better job and be much cheaper because you… — Stephen Hawking Copy Share
I believe the simplest explanation is, there is no God. No one created the universe and no one directs our fate. This leads me… — Stephen Hawking Copy Share
The increase of disorder or entropy is what distinguishes the past from the future, giving a direction to time. — Stephen Hawking Copy Share
Most sets of values would give rise to universes that, although they might be very beautiful, would contain no one able to wonder at… — Stephen Hawking Copy Share
There is a fundamental difference between religion, which is based on authority, and science, which is based on observation and reason. Science will win… — Stephen Hawking Copy Share
“In the eighteenth century, philosophers considered the whole of human knowledge, including science, to be their field and discussed questions such as: Did the… — Stephen Hawking Copy Share
A model is a good model if first it interprets a wide range of observations in terms of a simple and elegant model, and… — Stephen Hawking Copy Share
“Empedocles noticed that if you cover the neck before you immerse it, a clepsydra does not fill. He reasoned that something invisible must be… — Stephen Hawking Copy Share
The human race shouldn't have all its eggs in one basket, or on one planet. Let's hope we can avoid dropping the basket until… — Stephen Hawking Copy Share
I hope I have helped to raise the profile of science and to show that physics is not a mystery but can be understood… — Stephen Hawking Copy Share
![“Because imaginary time behaves like another direction in space, histories in imaginary time can be closed surfaces, like the surface of the Earth, with no [existential] beginning or end.” quote by Stephen Hawking](https://sms4smile.com/q/img-quotes/4c8/stephen-hawking-389_behave_because-imaginary-time-behaves-like-anot_1708134.jpg)
![“[On President Bush's plan to get to Mars in 10 years] Stupid. Robots would do a better job and be much cheaper because you don't have to bring them back.” quote by Stephen Hawking](https://sms4smile.com/q/img-quotes/4f9/stephen-hawking-389_better-job_on-president-bush-s-plan-to-get-to-mars_42167.jpg)
![“I think [contacting an alien civilization] would be a disaster. The extraterrestrials would probably be far in advance of us. The history of advanced races meeting more primitive people on this planet is not very happy, and they were the same species. I think we should keep our heads low.” quote by Stephen Hawking](https://sms4smile.com/q/img-quotes/585/stephen-hawking-389_aliens_i-think-contacting-an-alien-civilization_1727877.jpg)
