There is a new Physics model that challenges the standard Big Bang theory.
Background on ‘The Big Bang’ theory
By definition, “The Big Bang” is how astronomers explain the way the universe began.
“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!
‘Gravitational waves’ are responsible, study finds
This radical new theory on the origin of the universe suggests that “gravitational waves,” tiny ripples in space-time first predicted by Albert Einstein back in 1915, could have given “rise to cosmic matter,” thus being responsible for the creation of galaxies, stars, and planets.
As a result, this new theory aims to do away with a range of speculative and adjustable parameters within the traditional “Big Bang theory”; moreover, this model challenges inflation theory.
Study was published in ‘Physical Review Research’
The team’s research titled “Inflation without an inflaton” was initially published in July of 2025 in the scientific journal Physical Review Research.
According to SciTechDaily, researchers from Spain and Italy introduced a new model to explain what happened right after the genesis of the universe.
Their work has the potential to question long-accepted ideas about the universe’s earliest moments, and how those events influenced its subsequent evolution.
To investigate and explore further, the team ran a series of computer simulations designed to test alternatives to the “inflation” theory, which proposes that the universe underwent a rapid expansion during the first fraction of a second after it formed.
As indicated by this inflation model, multiple factors must align to make such an expansion possible, which makes it a complicated explanation that is still up for debate.
Dr. Raúl Jiménez on his findings
Dr. Raúl Jiménez, who is one of the co-authors and scientists of this study, noted that for decades “we tried to understand the early moments of the universe using models based on elements we have never observed.”
“What makes this proposal exciting is its simplicity and verifiability,” he said. “We are not adding speculative elements but rather demonstrating that gravity and quantum mechanics may be sufficient to explain how the structure of the cosmos came into being,” Jiménez explained.
According to the online space publication Space.com, “data that could confirm or refute this new model includes measurements of a cosmic fossil called the “cosmic microwave background (CMB),” which is a field of radiation that is left over from an event just after “The Big Bang.”
The article further indicated that “observations of the large-scale structure of the universe” and “measurements of primordial gravitational waves could also make or break this new model.”
Over the course of history, gravitational waves were first proposed by Oliver Heaviside in 1893, and then again by Henri Poincaré in 1905; moreover, they received a huge boost in attention in 1916 when Albert Einstein proposed them to be “ripples in the space-time continuum as part of his general theory or relativity.”
