Big Bang Cosmology
Articles tagged with Big Bang Cosmology
Gravity follows Newton and Einstein’s rules, even at cosmic scales
Researchers tracked galaxy clusters to test gravity's strength, finding it weakens with distance as predicted by Newton and Einstein. The study confirms the existence of invisible dark matter, closing the door on alternative theories like Modified Newtonian Dynamics.
New theory reshapes quantum view of Big Bang
Researchers at the University of Waterloo have developed a new theory that suggests the universe's rapid early expansion could emerge naturally from a deeper, more complete theory of quantum gravity. This approach offers a unified picture that connects the earliest moments of the universe to modern cosmology.
Development history of the universe is being rewritten based on a bachelor’s project from NBI
A team of researchers has observed a massive galaxy cluster that challenges existing models of the universe's evolution. The cluster's unusual structure and high density of cold, neutral hydrogen gas suggest a different history than previously thought. This discovery raises questions about the fate of large structures in the universe.
New particle detector passes the 'standard candle' test
The sPHENIX detector precisely measured particles from high-speed collisions, revealing properties of quark-gluon plasma. This achievement enables scientists to reconstruct the early universe's conditions.
Probing the cosmic Dark Ages from the far side of the Moon
Astronomers aim to unlock secrets of the 'Cosmic Dawn' by sending a miniature spacecraft to detect faint signals from hydrogen in early universe. The UK-led CosmoCube mission would observe from far side of Moon, creating a quiet spot to listen for an 'ancient whisper'.
Mapping space: Largest map of the universe announced
The COSMOS-Web field maps nearly 800,000 galaxies spanning 98% of cosmic time, challenging existing notions of the infant universe. Researchers see roughly 10 times more galaxies than expected at incredible distances, sparking new questions about the early universe and its mysteries.
New high-definition pictures of the baby universe
The Atacama Cosmology Telescope (ACT) collaboration has produced the clearest images yet of the universe’s infancy. These new images show subtle variations in density and velocity of gases in the young universe, helping scientists answer longstanding questions about the universe’s origins.
Beyond the 'Dragon Arc,' a treasure trove of unseen stars
Researchers observed a galaxy nearly 6.5 billion light-years away, revealing a large number of individual stars made visible through gravitational lensing. The discovery provides new insights into the universe's greatest mysteries, including dark matter and stellar populations.
NASA successfully integrates Roman mission’s telescope, instruments
The Roman Space Telescope has successfully integrated its telescope, instruments, and spacecraft components at NASA Goddard. The observatory will focus cosmic light and send it to its instruments, revealing billions of objects in space and time.
Unlocking the secrets of the first quasars: how they defy the laws of physics to grow
Researchers analyzed 21 distant quasars to find a connection between X-ray emission and wind speed, indicating rapid accretion of matter. This study challenges physics limits and provides insights for future X-ray missions.
Early galaxies were not too big for their britches after all
Researchers led by Katherine Chworowsky found that early galaxies were not as massive as initially thought due to black holes' influence. The study suggests that these black holes consume gas, emitting heat and light that makes the galaxies appear brighter than they really are.
Gravitational waves hint at dark matter and Big Bang mysteries
Researchers propose that simple forms of ultra-light scalar field matter could generate detectable gravitational wave backgrounds soon after the Big Bang. This discovery could shed light on dark matter and its role in the universe's mass, offering a new avenue for fundamental physics research.
$30 million in funding helps scientists study universe’s oldest light
Scientists will use the Simons Observatory to uncover secrets hidden in the cosmic tapestry, revealing mysteries of the universe with unparalleled precision. The observatory's completion marks a major milestone in understanding the cosmos.
Astrophysicists propose a new way of measuring cosmic expansion: lensed gravitational waves
Researchers propose using lensed gravitational waves from binary black holes to measure cosmic expansion. The method uses the delays between repeat appearances of these signals to encode the universe's expansion rate. This approach does not rely on knowing the exact locations or distances of binary black holes, making it a promising to...
Searching for the earliest galaxies in the universe
A team of astronomers discovered 87 galaxies that could be the earliest known galaxies in the universe using data from NASA's James Webb Space Telescope. This finding suggests a revision to our understanding of galaxy formation, indicating that more galaxies may have formed earlier than previously thought.
Previously hidden protoclusters could reveal new details of galaxy evolution
A new technique has identified previously hidden protoclusters that could reveal new details about galaxy evolution. The ancestors of large galaxy clusters were found to be hiding in plain sight, with some protoclusters harboring unseen galaxies that evolved differently.
Breaking news from the dawn of the universe
Astronomers identify GNz7q, a dusty compact object with properties of both galaxies and quasars, born 750 million years after Big Bang. The discovery provides new insights into the rapid growth of supermassive black holes in early universe.
Challenging the big bang puzzle of heavy elements
Scientists propose an alternative model for the formation of nitrogen, oxygen, and water based on the Earth's atmosphere history. They suggest that the Earth's lower mantle can create heavier elements through nuclear transmutation under high temperatures and pressures.