cosmological horizon Quotes

There is nothing outside the universe.

Astronomers say the universe is finite, which is a comforting thought for those people who can't remember where they leave things.

I feel that I've often pointed out that there are countless aspects of life and nature that scientists and scientific thinkers cannot explain. Why the universe is accelerating in its expansion and what came before the Big Bang serve as compelling examples. The process of science provides a way to seek answers to those questions.

The choice is: the Universe...or nothing.

Observations indicate that the universe is expanding at an ever-increasing rate. It will expand forever, getting emptier and darker. Although the universe doesn’t have an end, it had a beginning in the Big Bang. One might ask what is before that but the answer is that there is nowhere before the Big Bang just as there is nowhere south of the South Pole.

There is no doubt that a parallel exists between the big bang as an event and the Christian notion of creation from nothing.

On scientific grounds this big bang assumption is much less the palatable of the two. For it is an irrational process that cannot be described in scientific terms. . . . On philosophical grounds too I cannot see any good reason for preferring the big bang idea. Indeed it seems to me in the philosophical sense to be a distinctly unsatisfactory notion, since it puts the basic assumption out of sight where it can never be challenged by a direct appeal to observation.

I have little hesitation in saying that as a result a sickly pall now hangs over the big bang theory. As I have mentioned earlier, when a pattern of facts becomes set against a theory, experience shows that it rarely recovers.

Science could predict that the universe must have had a beginning.

What we see of the universe is vast. We know that the universe is something like 90 billion light-years across.

The upshot of all this is that we live in a universe whose age we can't quite compute, surrounded by stars whose distances we don't altogether know, filled with matter we can't identify, operating in conformance with physical laws whose properties we don’t truly understand.