The accelerated expansion of the Universe has been a mystery that has intrigued scientists for decades. A new theoretical study proposes an intriguing explanation for this phenomenon: what if our Universe was expanding by absorbing "baby" parallel universes?
The standard cosmological model suggests that the Universe is expanding due to the presence of a dark energy, invisible and undetected except for this expansion. However, this hypothesis raises questions and encourages researchers to explore other avenues. A study published on December 12, 2023, in the
Journal of Cosmology and Astroparticle Physics proposes an alternative: the cosmic expansion could result from the fusion of our Universe with other universes.
Illustration Image Pixabay
According to the authors, this theory could better match current observations than the standard model. They have developed a mathematical model demonstrating how the absorption of other universes could increase the volume of our Universe, interpreted as an expansion by our instruments.
This idea also offers a new perspective on cosmic inflation, the moment just after the Big Bang when the Universe experienced a rapid expansion. The researchers suggest that this episode could have been provoked by the absorption of our young Universe by a larger Universe, eliminating the need for a hypothetical field, the inflaton, responsible for this rapid expansion.
The validation of this hypothesis will require precise observational data. The Euclid and James Webb telescopes, with their ability to study the cosmic microwave background, could provide decisive answers.
The collision and absorption of baby universes represent a bold vision of cosmic evolution. This theory not only challenges traditional conceptions but also opens the door to new research to understand the expansion of our Universe. Only future observations will confirm or refute this fascinating proposition.