All articles tagged with #cosmic microwave background
Scientists discovered a galaxy cluster called SPT2349-56, just 1.4 billion years after the Big Bang, with gas temperatures far exceeding predictions, likely due to energy from supermassive black holes, challenging current models of galaxy cluster evolution.
A new study suggests the universe may be lopsided, challenging the standard cosmological model that assumes it is uniform in all directions, due to discrepancies in the cosmic dipole anomaly and matter distribution, which could lead to a major revision of our understanding of the cosmos.
New research suggests the universe may be lopsided, challenging the standard cosmological model due to discrepancies between the cosmic microwave background and the distribution of distant astronomical sources, indicating a potential need for a fundamental rethink of our understanding of the cosmos.
The final data from the Atacama Cosmology Telescope in Chile has confirmed the Hubble tension—discrepancies in the universe's expansion rate—and ruled out around 30 alternative cosmological models, helping to narrow down the possible explanations for this cosmic mystery.
A 15-year study using the Atacama Cosmology Telescope confirmed the existence of the Hubble tension, revealing discrepancies in the universe's expansion rate and ruling out many extended cosmological models, thus deepening the mystery of our universe's true nature.
A Japanese research team measured the temperature of the universe 7 billion years ago using data from ALMA, finding it to be about 5.13 K, roughly double today's temperature, which confirms predictions of the Big Bang theory with high precision and supports our understanding of cosmic evolution.
The article discusses potential methods to peer beyond the cosmic microwave background 'wall' of the early universe, focusing on detecting faint X-ray and neutrino signals from primordial cosmic bursts, which could reveal information about events before 380,000 years after the Big Bang. It highlights future possibilities for indirect observation using advanced telescopes and detectors, despite current technological limitations.
The article discusses the uncertainties surrounding the maximum temperature of the early universe during the Big Bang, highlighting how cosmic inflation and observational data from the cosmic microwave background help constrain this temperature, which is estimated to be between 10^24 and 10^28 Kelvin, well below the Planck scale.
Jim Baggott's book 'Discordance' explores the ongoing challenges and uncertainties in understanding the universe, focusing on the Hubble constant and the discrepancies in cosmological measurements, highlighting that modern cosmology remains an unfinished and evolving science.
Astronomers share their favorite objects in space, ranging from the first directly imaged exoplanet system PDS 70, the mysterious transits of Tabby's Star, the dramatic history of Eta Carina, the neutron star 1E2259+586, to the cosmic microwave background, highlighting the diverse and fascinating phenomena in the universe.
Scientists have potentially located the missing ordinary matter in the universe, which is mostly found outside galaxy halos in the intergalactic medium, using observations of fast radio bursts to measure the distribution of baryons and better understand the universe's composition.
Scientists propose that the universe might be gently spinning to resolve the Hubble tension, a discrepancy in measurements of cosmic expansion, without violating known physics. This subtle rotation could be detected through patterns in the cosmic microwave background and galaxy distribution, potentially reshaping our understanding of cosmic dynamics.
Astronomers have made several unexpected discoveries while searching for other celestial phenomena, including the discovery of Uranus, Ceres, solar flares, cosmic X-rays, the cosmic microwave background, pulsars, gamma-ray bursts, exoplanets, dark energy, and fast radio bursts, all of which have significantly advanced our understanding of the universe.
The South Pole Telescope in Antarctica, a crucial tool for studying the early universe and cosmic phenomena, is highlighted under a colorful night sky, emphasizing its role in advancing our understanding of the universe's origins and structure.
Researchers propose that black holes may convert matter into dark energy, potentially explaining the universe's accelerated expansion and resolving issues with neutrino mass measurements, based on data from the DESI mission and cosmic observations.