Scientists propose a revolutionary theory suggesting supermassive black holes observed by the James Webb Space Telescope originated not from dying stars, but as tiny primordial black holes formed in the Big Bang’s aftermath. This challenges our understanding of black hole formation and the early universe.
A new theory suggests that dark matter, the mysterious substance that makes up most of the universe’s mass, could be composed of primordial black holes formed during a transition from the universe’s last contraction to its current expansion phase. This ‘bouncing’ universe theory challenges the traditional Big Bang model and offers a testable hypothesis for the origin of dark matter.
From the expansion of the universe to the spinning of galaxies, motion is a fundamental aspect of the cosmos. This article explores the reasons behind this constant movement, including the Big Bang, angular momentum, and the mysterious influence of dark matter.
A recent study casts doubt on the theory that low-frequency gravitational waves, detected by pulsar timing arrays, originated from a phase transition shortly after the Big Bang. The research suggests that a supercool phase transition, while a possible source, would face significant challenges in the rapidly expanding early universe.
Astronomers have detected carbon in a galaxy dating back to just 350 million years after the Big Bang, the earliest discovery of an element other than hydrogen in the universe. This challenges the assumption that carbon formed billions of years later and suggests that life could have emerged much earlier than previously thought.
A new study suggests that the early universe may have contained far fewer primordial black holes than previously thought, complicating the search for dark matter.
Using the James Webb Space Telescope, researchers have discovered the most distant known galaxy, JADES-GS-z14-0, which existed just a few hundred million years after the Big Bang. This discovery challenges previous theories about the evolution of galaxies in the early universe.
Using the James Webb Space Telescope (JWST), astronomers have made a groundbreaking discovery, detecting three infant galaxies in the process of formation just 400 to 600 million years after the Big Bang. This remarkable observation provides a glimpse into the enigmatic era of reionization, when the first stars and galaxies illuminated the dark, gas-filled universe.
Three ancient stars, dubbed Small Accreted Stellar System (SASS) stars, have been discovered orbiting the Milky Way. These stars are believed to be among the first to form after the Big Bang and may have been stolen from other galaxies billions of years ago. The discovery provides scientists with a rare opportunity to study ancient stars directly and could lead to a better understanding of the early universe.
