Researchers have discovered a galaxy that magnified a background supernova thirtyfold through gravitational lensing, confirming their previous explanation for the anomaly. This discovery may significantly impact our understanding of cosmic expansion and the mysterious components of the Universe, including dark energy and dark matter.
The BOSS study uses quasars to map density variations in intergalactic gas, tracing the structure of the young universe and illuminating the nature of dark energy. The latest results establish the expansion rate at 68 km/s/Mly at redshift 2.34 with unprecedented accuracy of 2.2 percent.
A team of astronomers discovered mature galaxies at a record-breaking distance, containing 100 billion stars each. These galaxies formed rapidly over 1 billion years, with star formation rates hundreds of times higher than observed today.
A 1931 paper by Albert Einstein featuring a dynamic model of the universe has been re-examined, highlighting numerical errors and questionable calculations. The model, which includes a contraction phase, contrasts with the widely known expanding Einstein-de Sitter model.
In 1917 Einstein applied general relativity to a static universe, introducing the cosmological constant to address gravitational collapse. He resisted expanding universe views despite contemporary suggestions from astrophysicists Alexander Friedman and Georges Lemaître.
Numerical simulations charting the universe's forces in its first hundreds of millions of years reveal subtle effects governing galaxy evolution, including incomplete mixing and chaotic supernova ejections. The findings shed light on metal formation and distribution in the earliest galaxies.
A Tel Aviv University study suggests that cosmic heating occurred later than previously believed, allowing astronomers to detect the earliest black holes by searching for radio waves in space. This finding has significant implications for our understanding of the universe's origins and the history of cosmic expansion.
Scientists discovered that massive galaxies in the early universe were formed by explosive star formation triggered by galaxy collisions. This theory contradicts the traditional view that galaxies grew larger over time through constant star formation and mergers.
The Baryon Oscillation Spectroscopic Survey (BOSS) has made the most precise calibration yet of the universe's 'standard ruler', measuring its scale to an accuracy of one percent. This precision is crucial for determining the nature of dark energy and understanding the expansion history of the universe.
Researchers detected twisting patterns in polarization of oldest light in the universe, hinting at complex processes and properties of the earliest moments in the universe's formation. The discovery could help physicists better understand the distribution of mass and define cosmologically important properties.
New calculations confirm the universe may collapse, with a higher risk than previously thought. A phase transition in the Higgs field could lead to a violent process where particles become extremely heavy and the universe ceases to exist.
Researchers have mathematically described the phase transition between a boring empty space and an expanding universe containing mass. The theory connects quantum field theory and Einstein's relativity, suggesting that time and space can undergo a phase transition similar to liquid-solid transitions.
Researchers propose a new model for supermassive black hole growth involving 'seed' black holes formed from early stars. A single collapsing star can produce a pair of black holes that merge, resolving the issue of their rapid formation in the young universe.
A new study by Dartmouth researchers eliminates a controversial theory that the universe's accelerating expansion is an illusion. They used Big Bang afterglow to show that Earth has no special place in the expanding universe, eliminating the possibility of a cosmic center.
Researchers detect z8_GND_5296 galaxy using Hubble Space Telescope data, revealing universe's earliest conditions. The discovery sheds light on the era when the universe transitioned from opaque to translucent state.
Researchers have developed a new method to clean theories and models of particle physics from uncertainties, making it easier to assess their validity. The approach could lead to the discovery of new physics, which may explain long-standing problems such as dark matter and gravity.
Physicists have successfully simulated the evolution of the early universe using ultracold cesium atoms. The experiment replicated patterns resembling the cosmic microwave background radiation, shedding light on the universe's origins. By studying these patterns, researchers can better understand the universe's structure and properties.
The Daya Bay Collaboration has released new results on neutrino oscillation, measuring a key difference in neutrino masses known as mass splitting. The findings provide insight into the structure of matter and the evolution of the universe.
Fermi's extended mission will enable deeper studies of gamma-ray bursts, pulsars, and supermassive black holes. The telescope has already revealed giant bubbles above and below our galaxy, shedding light on the universe's most extraordinary phenomena.
A new analysis of cosmic microwave background radiation data has taken the furthest look back in time, revealing an excess of radiation that may indicate the presence of primordial neutrinos or dark energy. The findings challenge current theories on the universe's early expansion history.
A team of researchers studied an early galaxy using the ESO Very Large Telescope and Hubble Space Telescope, determining its size, mass, element content, and star formation rate. The study found that the galaxy contained a high proportion of heavier elements, similar to those in the centre and outer parts of the galaxy.
Astronomers use a new stacking technique to detect faint signals from distant galaxies, revealing crucial information about the amount of hydrogen they contain. This technique allows for the detection of ancient galaxies and provides insights into the evolution of the Universe.
The new mathematical model by Professor Kostas Skenderis links flat space-time to negatively curved space-time, governed by laws similar to electromagnetism. The research aims to find a combined understanding of the Universe, combining individual theories to describe its nature.
A team of astronomers used the VLA to create a detailed image of the distant universe, revealing distinct galaxies with gorging black holes at their cores. The study found that 63% of background radio emission comes from galaxies with active black holes and 37% from star-forming regions.
A team of researchers has developed a method using black holes to measure the universe's rate of expansion with high accuracy. The method uses radiation emitted by material surrounding black holes, allowing for distance measurements of billions of light years and providing insights into the universe's past.
Researchers have developed a computer algorithm that can model and catalogue the entire set of lightweight, carbon-containing molecules that chemists could feasibly create in a lab. The map helps scientists identify unexplored regions of the chemical space where new compounds may hold solutions to some of the world's most vexing challe...
Astronomers have uncovered a massive star factory in the universe's youth, producing stars at a rate 2,000 times that of our Milky Way. The galaxy, HFLS3, has a reservoir of gas and dust, with over 40 billion stars and 100 billion tons of gas.
A team of astronomers has discovered a massive galaxy producing stars at an unprecedented rate of 2,000 times greater than the Milky Way. This 'maximum-starburst' galaxy, called HFLS3, is the earliest known starburst galaxy, dating back to 880 million years after the Big Bang.
Researchers developed a new mathematical tool to determine spacetime's shape from 'sound' pulses caused by quantum fluctuations. This technique connects quantum theory and general relativity via vibrational wavelengths, enabling novel probing of the universe.
Astronomers at CU-Boulder used the Hubble Space Telescope to study a quasar's impact on early universe conditions. The team found that 'sideline quasars' likely teamed up with the bright quasar to heat helium gas, preventing small galaxy formation.
The Planck observatory's first 15 months of data reveal that the universe is 100 million years older than previously thought, with more matter and less dark energy. Scientists used supercomputing at NERSC to create detailed maps of the relic radiation from the big bang.
The Planck satellite provides an unprecedented level of detail about the cosmic microwave background, confirming the standard model of cosmology at exceptional accuracy. Anomalies in the data suggest the Universe may be different on scales larger than those directly observable.
The Planck space mission has released its most accurate map of the oldest light in the universe, revealing a slower expansion rate and less dark energy. The new data also provide insights into dark matter and normal matter contents, challenging current models.
Astronomers using NSF-funded South Pole Telescope and ALMA observatory discover galaxies producing stars at high rates, challenging previous understanding of galaxy formation. The discovery provides valuable data to refine computer models of star and galaxy formation in the early universe.
Researchers have discovered vigorous starbursts in young galaxies, indicating the universe produced stars much earlier than thought. The findings reveal a rate of star formation 1,000 times greater than today's Milky Way and provide new insights into the history of the universe.
A team of astronomers has discovered two ancient, highly active galaxies in the early Universe, formed soon after the Big Bang. These galaxies are characterized by an unusually high rate of star formation and will help improve our understanding of star formation in the early Universe.
Astronomers use ALMA to detect 26 distant galaxies, revealing the most distant detection of water in the cosmos. The findings show that star birth bursts occurred much earlier than previously thought, with some galaxies as bright as 40 trillion Suns.
Astronomers use ALMA to observe distant starburst galaxies, detecting water in one for the first time. The team finds that these galaxies formed stars at a furious pace 12 billion years ago, earlier than previously thought.
A team of astronomers has found galaxies producing stars at a prodigious rate when the universe was just a billion years old. The discovery, enabled by the Atacama Large Millimeter Array (ALMA), provides valuable data for refining theoretical models of star and galaxy formation in the early universe.
Astronomers using ALMA telescope discover starburst galaxies earlier than thought, representing massive galaxies in energetic youth. These galaxies are forming 1,000 stars per year, compared to just 1 for the Milky Way, making them 'monstrous bursts of star formation'.
Astronomers use ALMA to observe distant galaxies that churned out tens of thousands of stars each year at dawn of the universe. The study finds that these galaxies are more abundant than thought and host intense bursts of star formation.
The NASA grant will support the U.S. institutions in building lasers and monitoring equipment for calibrating the telescope's optics from around the globe. The Extreme Universe Space Observatory aims to discover the sources of ultra high-energy cosmic rays by observing their traces in the atmosphere.
Researchers have measured the distance to our nearest neighbor galaxy, the Large Magellanic Cloud, using rare eclipsing binaries. The new measurement refines an astronomical calculation that helps measure the expansion of the universe, decreasing uncertainty in the Hubble constant.
A team of astronomers has measured the distance to the Large Magellanic Cloud with unprecedented accuracy, pinning down its value at 163,000 light-years. This breakthrough improves distances for Cepheid variable stars and the Hubble Constant, enabling more precise surveying of the Universe.
Naveen Reddy, an assistant professor at UC Riverside, has been awarded a Sloan Research Fellowship to study the physics of early universe and extragalactic astronomy. The fellowship will support his research on faint galaxies in the distant universe.
The new telescope, with a 100m x 100m collecting area, will scan half of the sky daily and synthesize an image of the sky nearly one billion times per second. The CHIME telescope aims to map a quarter of the observable universe, helping scientists understand the history of the Universe and dark energy's role in its expansion.
Researchers used a CSIRO radio telescope to measure the temperature of an unnamed galaxy 7.2 billion light-years away, finding it was 5.08 Kelvin (-267.92 degrees Celsius). This confirms the Big Bang theory's prediction that the Universe's temperature drops smoothly as it expands.
Irene Sendra's research proposes a dynamic, dark energy model that varies over time, consistent with observations of the universe's acceleration. She also unites dark energy and dark matter into a single component, achieving better results in her models.
Research by Rodger Thompson finds that a popular dark energy alternative does not fit newly obtained data on the proton to electron mass ratio. This impact our understanding of the universe's accelerating expansion and point to a new direction for further study, potentially leading to a return to Einstein's General Relativity.
A team of researchers has calculated the strength and distribution of magnetic fields in the early universe, finding that they existed even before the first stars formed. The calculations show that these weak magnetic fields were present throughout the entire plasma volume, with strengths as low as 10^-20 Tesla.
Astronomers have discovered a previously unseen population of seven primitive galaxies that formed more than 13 billion years ago. The galaxies were observed using Hubble's Wide Field Camera 3 in near-infrared light, allowing researchers to study the early universe.
A team of researchers at MIT analyzed light from a quasar, which is the most distant object known, to study the era of the first stars and galaxies. They found no evidence of heavy elements in the surrounding gaseous cloud, suggesting that the quasar dates back to an era nearing the universe's first stars.
Scientists at Penn State University developed a new paradigm for understanding the earliest eras of the universe, extending analyses to the Big Bang using loop quantum cosmology. The research reveals that fundamental fluctuations in space-time evolved into large-scale structures, challenging classical physics and inflationary theories.
Astronomers have discovered a distant galaxy, MACS0647-JD, which offers a glimpse into the early universe 420 million years after the Big Bang. The galaxy was magnified by a massive cluster using gravitational lensing, revealing three images of the same object.
The BOSS survey maps quasars to study dark energy, revealing a new era of the universe's expansion history. By analyzing the Lyman-alpha forest, scientists can measure BAO and calibrate the rate of expansion.
Researchers find two super-luminous supernovae at high redshifts, consistent with pair-instability supernova mechanism. The explosions are thought to have occurred in massive stars that formed in the early universe.
Using data from NASA's Fermi Gamma-ray Space Telescope, scientists measured the most accurate amount of starlight in the universe and determined the extragalactic background light (EBL), also known as cosmic fog. The EBL is a fossil radiation field created by ancient starlight that continues to travel through the universe.
Kostas Skenderis, a University of Southampton professor, has been awarded a $175,000 grant to investigate the laws of physics at the beginning of time and space. He aims to combine Einstein's theory with quantum physics to develop a new holographic theory for the early universe.
Astronomers have detected a potentially most distant galaxy ever seen, offering a glimpse into the universe's earliest epochs. The galaxy, observed through gravitational lensing, has a redshift of 9.6 and is estimated to be less than 200 million years old.
A team of astronomers has spotted a potentially most distant galaxy ever detected, which existed 500 million years after the Big Bang. The discovery opens up a window into the deepest, remotest epochs of cosmic history, providing insights into the universe's earliest objects and the Dark Ages.