The cosmic inflation scenario was, after all, invented by theorists to solve this problem. Entropy is a concept which quantifies the number of different ways a physical system can be arranged.

Initially starting as a solution to the problem of flatness in the early universe, cosmic inflation has become a central idea in modern cosmology. The key to its power comes from how well it can ...

The Big Bang model begins with a point of infinite density where the laws of physics break down. This is a deep theoretical problem that suggests the beginning of the Universe is not fully understood, ...

For decades, string theory has promised to be the ultimate explanation for how our universe works. In this theory, all matter ...

Meanwhile, cosmic inflation is a scenario proposed in the 1980s to explain why the universe is so smooth and flat on the largest scales we can see. The idea is that the infant universe was small and ...

Researchers, in a recent Physical Review Letters paper, introduce a new mechanism that may finally allow ultralight dark ...

Physicist Alan Guth, the father of cosmic inflation theory, describes emerging ideas about where our universe comes from, what else is out there, and what caused it to exist in the first place.

Various large-scale astrophysical research projects are set to take place over the next decade, several of which are so-called cosmic microwave background (CMB) experiments. These are large-scale ...