Space Stephen Hawking Quotes & Sayings

If we want to travel into the future, we just need to go fast. Really fast. And I think the only way we're ever likely to do that is by going into space. — Stephen Hawking

Why do we see only three space dimensions and one time dimension? The suggestion is that the other dimensions are curved up into a space of very small size, something like a million million million million millionth of an inch. This is so small that we just don't notice it: we see only one time dimension and three space dimensions, in which space-time is fairly flat. — Stephen Hawking

A zero-gravity flight is a first step toward space travel. — Stephen Hawking

Our only chance of long-term survival is not to remain lurking on planet Earth, but to spread out into space. — Stephen Hawking

Think of our DNA. In the last million years, our DNA hasn't changed at all. It's really much the same as it was in the jungle, a million, two millions years ago. But in the last 200 years, our destructive capacities have increased many, many millions of times over. Why don't we see intelligent signals from outer space? Because in all likelihood, once the civilization reaches the point our civilization has reached, it destroys itself. — Stephen Hawking

Back in 2007, I had the opportunity to meet Professor Stephen Hawking through the X PRIZE Foundation. In my first conversation with him I learned that he was passionate about flying into space someday. — Peter Diamandis

One has a singularity contained within a region of space-time known as a black hole. — Stephen Hawking

I have wanted to fly into space for many years, but never imagined it would really be feasible. — Stephen Hawking

My advice to any heartbroken young girl is to pay close attention to the study of theoretical physics. Because one day there may well be proof of multiple universes. It would not be beyond the realms of possibility that somewhere outside of our own universe lies another different universe. And in that universe, Zayn is still in One Direction. — Stephen Hawking

This might suggest that the so-called imaginary time is really the real time, and that what we call real time is just a figment of our imaginations. In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down. But in imaginary time, there are no singularities or boundaries. So maybe what we call imaginary time is really more basic, and what we call real is just an idea that we invent to help us describe what we think the universe is like. — Stephen Hawking

In space no one can hear you scream; and in a black hole, no one can see you disappear. — Stephen Hawking

The nonexistence of absolute rest therefore meant that one could not give an event an absolute position in space, as Aristotle had believed. The positions of events and the distances between them would be different for a person on the train and one on the track, and there would be no reason to prefer one person's position to the other's. — Stephen Hawking

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. — Stephen Hawking

I believe that the long-term future of the human race must be space and that it represents an important life insurance for our future survival, as it could prevent the disappearance of humanity by colonizing other planets, — Stephen Hawking

I think the human race has no future if it doesn't go into space. — Stephen Hawking

We have made remarkable progress in the last hundred years, but if we want to continue, our future is in space. — Stephen Hawking

If we can avoid disaster for the next two centuries, our species should be safe as we spread into space. If we are the only intellegent beings in the galaxy we should make sure we survive and continue ... Our only chance of long-term survival is not to remain inward looking on planet Earth but to spread out into space. We have maderemarkable progress in the last hundred years. But if we want to continue beyond the next hundred years, our future is in space. — Stephen Hawking

In the early universe - when the universe was small enough to be governed by both general relativity and quantum theory - there were effectively four dimensions of space and none of time. That means that when we speak of the "beginning" of the universe, we are skirting the subtle issue that as we look backward toward the very early universe, time as we know it does not exist! We must accept that our usual ideas of space and time do not apply to the very early universe. That is beyond our experience, but not beyond our imagination, or our mathematics. — Stephen Hawking

Because one is using Euclidean space-times, in which the time direction is on the same footing as directions in space, it is possible for space-time to be finite in extent and yet to have no singularities that formed a boundary or edge. Space-time would be like the surface of the earth, only with two more dimensions. The surface of the earth is finite in extent but it doesn't have a boundary or edge: if you sail off into the sunset, you don't fall off the edge or run into a singularity. (I know, because I have been round the world!) — Stephen Hawking

It surprises me how disinterested we are today about things like physics, space, the universe and philosophy of our existence, our purpose, our final destination. Its a crazy world out there. Be curious. — Stephen Hawking

One can see from space how the human race has changed the Earth. Nearly all of the available land has been cleared of forest and is now used for agriculture or urban development. The polar icecaps are shrinking and the desert areas are increasing. At night, the Earth is no longer dark, but large areas are lit up. All of this is evidence that human exploitation of the planet is reaching a critical limit. But human demands and expectations are ever-increasing. We cannot continue to pollute the atmosphere, poison the ocean and exhaust the land. There isn't any more available. — Stephen Hawking

Bodies like the earth are not made to move on curved orbits by a force called gravity; instead, they follow the nearest thing to a straight path in a curved space, which is called a geodesic. A geodesic is the shortest (or longest) path between two nearby points. — Stephen Hawking

Time and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions. — Stephen Hawking

Ultimately, my Ph.D. is in mathematical physics, focusing on quantum field theory and curved space-time, and I worked with Stephen Hawking. — Nathan Myhrvold

Time can behave like another direction in space under extreme conditions. — Stephen Hawking

You know what I'm intrigued by? Like, space and wormholes and Stephen Hawking's theories and Richard Dawkins's theories. That's what I care about. — Peaches Geldof

We keep saying that we humans are all in the same boat. This is only physically true, but not mentally! For instance Stephen Hawking lives mentally on the space! Not everyman mentally lives on this planet! — Mehmet Murat Ildan

Because gravity shapes space and time, it allows space time to be locally stable but globally unstable. On the scale of the entire universe, the positive energy of the matter can be balanced by the negative gravitational energy, and so there is no restriction on the creation of whole universes. Because there is a law like gravity, the universe can and will create itself from nothing in the manner described in Chapter 6. — Stephen Hawking

Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out. — Stephen Hawking

Before 1915, space and time were thought of as a fixed arena in which events took place, but which was not affected by what happened in it. Space and time are now dynamic quantities ... space and time not only affect but are also affected by everything that happens in the universe. — Stephen Hawking

In real time, the universe has a beginning and an end at singularities that form a boundary to space-time and at which the laws of science break down. — Stephen Hawking

Gravity is so strong that space is bent round onto itself, making it rather like the surface of the earth. If one keeps traveling in a certain direction on the surface of the earth, one never comes up against an impassable barrier or falls over the edge, but eventually comes back to where one started. — Stephen Hawking

The mass of the sun curves space-time in such a way that although the earth follows a straight path in four-dimensional space-time, it appears to us to move along a circular orbit in three-dimensional space. — Stephen Hawking

I don't think the human race will survive the next thousand years, unless we spread into space. — Stephen Hawking

In the classical theory of gravity, which is based on real space-time, there are only two possible ways the universe can behave: either it has existed for an infinite time, or else it had a beginning at a singularity at some finite time in the past. — Stephen Hawking

I want to encourage public interest in space. I have never let my condition stop me. You only live once. — Stephen Hawking

Perhaps one day I will go into space. — Stephen Hawking

It is impossible to imagine a four-dimensional space. I personally find it hard enough to visualize a three-dimensional space! — Stephen Hawking

I firmly believe in what Stephen Hawking says - that if we don't get off this planet, we're going to go berserk. We have to have more space. — Jolene Blalock

In physics a system is said to have a symmetry if its properties are unaffected by a certain transformation such as rotating it in space or taking its mirror image. For example, if you flip a donut over, it looks exactly the same (unless it has a chocolate topping, in which case it is better just to eat it). — Stephen Hawking

Please join me in applauding the ESA - European Space Agency's historic efforts with the Rosetta Mission and landing a spacecraft on rotating comet. It may seem like a work of fiction, but it is very real, very impressive, and will help us to further uncover the mysteries surrounding the formation of the solar system. They made a beautiful short film using an imaginary landscape to illustrate today's historic feat. — Stephen Hawking

"Sooner or later disasters such as an asteroid collision or a nuclear war could wipe us all out, But once we spread out into space and establish independent colonies, our future should be safe." — Stephen Hawking