A radical new theory regarding the origin of the universe suggests that gravitational waves, tiny ripples in spacetime first predicted by Albert Einstein back in 1915, could have given rise to cosmic ...

“The Big Bang” is the idea that the universe began as “just a single point,” then expanded and stretched to grow as large as it is right now—and it is still stretching! This radical new theory on the ...

For decades, scientists have relied on a popular idea referred to as cosmic inflation to explain how the universe began and why it looks the way it does today. This theory suggests the universe ...

Dr. Niayesh Afshordi, professor at the University of Waterloo and Perimeter Institute, draws the renormalization group flow for quadratic quantum gravity (University of Waterloo). Waterloo scientists ...

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 ...

WHAT if the big bang never happened? Ask cosmologists this and they’ll usually tell you it is a stupid question. The evidence, after all, is written in the heavens. Take the way galaxies are scattered ...

The largest-ever survey of physicists from around the world—released today—shows a distinct lack of consensus across many of physics's most important questions, from the nature of black holes and dark ...