New mathematical research suggests dark energy may not be needed to explain the accelerating expansion…
Browsing: Big Bang
The Big Bang theory is the prevailing cosmological model describing the early development of the Universe. According to this theory, the Universe began as an extremely hot and dense point approximately 13.8 billion years ago and has been expanding ever since. This initial expansion from a singularity involved a sequence of events, starting with a period of exponential growth called cosmic inflation, which smoothed out the distribution of energy and matter. Following this rapid expansion, the Universe cooled sufficiently to allow subatomic particles and simple atoms to form. As the Universe continued to expand and cool, the first stars and galaxies began to coalesce from slight irregularities in the matter density, leading to the large-scale structure observed in the Universe today. The Big Bang theory is supported by multiple lines of evidence, including the cosmic microwave background radiation, which is the afterglow of the initial explosion, and the observed distribution of galaxies and their redshifts, which indicates that the Universe is still expanding.
Scientists believe an unusual LIGO detection may be evidence of a primordial black hole, potentially…
A new quantum gravity theory suggests the Big Bang may have unfolded naturally—and could soon…
Primordial magnetic fields may help explain why measurements of the universe’s expansion do not agree.…
Scientists studying particle collisions at CERN have captured new evidence of how quarks move through…
Observations show the universe appears flat, yet its true size and global shape beyond the…
Cosmic voids are not truly empty but are filled with vacuum energy that powers the…
Three papers in JCAP report the final data release from the Atacama Cosmology Telescope, unveiling…
Evidence from large-scale cosmic patterns suggests the Universe may be fundamentally asymmetric. For decades, cosmology…
Dark matter, the invisible substance that shapes the Universe, may have had a far more…
A new theoretical study suggests fusion reactors could do more than generate energy, they might…
A distant spiral galaxy called Alaknanda has been found at a time when such orderly…
Astronomers are uncovering new ways to study the universe’s first stars, objects too distant and…
A new study suggests that during a potential phase of primordial matter domination, particle interactions…
Rice University researchers have taken the Universe’s temperature by measuring heat from quark-gluon plasma, a…
Collaborative experiments focus on uncovering the unusual properties of the ghost particle. In a recent…
Researchers have moved one step closer to solving one of science’s greatest mysteries—why the universe…
Scientists propose that gravitational waves shaped the universe. Their model challenges inflation theory. How exactly…