As the Big Bang became accepted scientific theory, the oscillating universe theory faded away. But some physicists, like Paul Steinhardt and Neil Turok, have picked the idea up again, modified it ...

While this is not the only modern theory of how the Universe came into being – for example, there is the Steady State Theory or the Oscillating Universe Theory – it is the most widely accepted ...

Most astronomers believe the universe began 13.8 billion years ago in an explosion called the Big Bang. Other theorists have invented alternatives and extensions to this theory.

The most widely accepted theory about the origin of the universe is the Big Bang. That is, approximately 13.8 billion years ago, from a state of very high density and high temperat ...

In this excerpt from his acclaimed book, The Elegant Universe, Brian Greene explains why string theory might hold the key to unifying the four forces of nature.

Cosmologists have predicted the existence of an oscillating signal that could distinguish between cosmic inflation and alternative theories of the universe’s birth. The leading hypothesis about the ...

Theoretical physicists from the University of North Carolina suggest that the universe was not created in a Big Bang but, rather, expands and contracts in an endless (infinite) cycle. American ...