No one intuitively understands quantum mechanics because all of our experience involves a world of classical phenomena where, for example, a baseball thrown from pitcher to catcher seems to take just one path, the one described by Newton's laws of motion. Yet at a microscopic level, the universe behaves quite differently.
If we look at the way the universe behaves, quantum mechanics gives us fundamental, unavoidable indeterminacy, so that alternative histories of the universe can be assigned probability.
Studying whether there's life on Mars or studying how the universe began, there's something magical about pushing back the frontiers of knowledge. That's something that is almost part of being human, and I'm certain that will continue.
The really wonderful thing that happened to me when I was in space was this feeling of belonging to the entire universe.
The universe seems neither benign nor hostile, merely indifferent.
Personally, I do not know whether humankind is alone in this vast universe. But I do know that we should cherish our existence on this precious speck of matter... the greatest gift that could be bestowed upon us. For all practical purposes, there is only one planet Earth.
Astronomers have been bewildered by the theory of an expanding universe, but there is no less expansion in the moral infinite of the universe of man. As far as the frontiers of science are pushed back, over the extended arc of these frontiers one will hear the poet's hounds on the chase.
I'm fanatical about movies: African, European, Viking, Roman. I got into witchcraft and magic from watching 'Bewitched' and 'The Wizard of Oz,' which shows in some of my outfits. I dress to reflect the whole spectrum of the universe.
While I'm a big fan of science fiction, especially as rendered in expensive Hollywood blockbusters, it's the real universe that calls to me.
When scientists are asked what they are working on, their response is seldom 'Finding the origin of the universe' or 'Seeking to cure cancer.' Usually, they will claim to be tackling a very specific problem - a small piece of the jigsaw that builds up the big picture.
The original project began because we know the universe is expanding. Everybody had assumed that gravity would slow down the expansion of the universe and everything would come to a halt and collapse. The big surprise was it was actually speeding up.
There is nothing bigger or older than the universe.
The human brain has 100 billion neurons, each neuron connected to 10 thousand other neurons. Sitting on your shoulders is the most complicated object in the known universe.
Planet Earth is estimated to have a lifetime of nine billion years. And we're right smack in the middle of our lifetime. We've been in the universe for 4.5 billion years. So, that should mean something. We should sort of take a look at where we came from and where we are going.
When you buy a jacket, you pick the size to ensure it fits. Similarly, we live in a universe in which the amount of dark energy fits our biological make-up. If the amount of dark energy were substantially different from what we've measured, the environmental conditions would be inhospitable to our form of life.
All the body wants to do biologically is decompose. Once you die, it's, 'Let me out here! I'm ready to shoot my atoms back into the universe!'
You may be guided by the unending effort of poets and artists, biologists and psychiatrists to describe that irreplaceable and still mysterious emotion so essential to the human condition, but all the search engines in the universe cannot compete with the first kiss.
A universe with a God would look quite different from a universe without one. A physics, a biology where there is a God is bound to look different. So the most basic claims of religion are scientific. Religion is a scientific theory.
There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.
Do you realize that if you fall into a black hole, you will see the entire future of the Universe unfold in front of you in a matter of moments and you will emerge into another space-time created by the singularity of the black hole you just fell into?
