The model questions the popular inflation theory, which most experts believe was facilitated after the universe's birth. The ...

Scientists have been using complicated, hypothetical particles to explain the Big Bang, but this theory posits that a simpler ...

The birth of the universe has been a question that has puzzled scientists for centuries. In a groundbreaking study published ...

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Cosmic inflation tries to describe one brief but crucial phase in the Big Bang that launched the universe onto its expansion course. Many textbooks and science educators have attempted to describe the ...

Asking what existed before the Big Bang is often dismissed as meaningless, since traditional physics breaks down when pushed that far back in time. Yet a new paper published in Living Reviews in ...

In the earliest moments after the universe was born, everything changed—fast. This rapid expansion, known as cosmic inflation, was theorized to solve problems in the Big Bang model. It explains why ...

We'll cut right to the chase: This video of Stanford Professor Andrei Linde finding out about yesterday's big discovery of "smoking gun" evidence of cosmic inflation (the "first tremors of the big ...

A new theory promises to simplify our approach to the universe's earliest moments, but some cosmologists say further mathematical scrutiny is warranted. reading time 5 minutes Following the Big Bang, ...

How did the universe begin? A compact NASA space telescope that uses less power than a refrigerator is poised to chip away at that very large question. Called SPHEREx, and set for launch on a SpaceX ...

Is the universe 'tuned' to support life, and ultimately us? Physicists Nemanja Kaloper and Alexander Westphal have proposed ways to test this Anthropic principle. (Image of deep star field from the ...

Alex Vilenkin discussed what lies beyond the cosmic horizon in the fourth-ever Dean's Faculty Forum last night. "Until recently, physicists thought that the answer to this question was quite boring," ...