How 'quantum foam' may have inflated the early universe
Quantum foam may explain the rapid expansion of the early universe.

Recent research proposes that the early universe's rapid expansion, known as inflation, may not require a unique particle called the inflaton. This new model suggests the expansion could be driven by quantum foam, the inherent fluctuations in space-time at incredibly small scales.
This concept builds on the already established idea of a cosmological constant, similar to the dark energy affecting the universe today. Researchers observed that these fluctuations could sometimes produce the correct deformations in space-time necessary for forming the large-scale structures of the universe.
Despite its potential, this model is not without limitations. It doesn't fully address the universe's flatness problem or consistent structure at cosmic scales, leaving some crucial questions in cosmology unresolved.