The BOOMERANG experiment found a flat universe by analyzing cosmic microwave background radiation data. The team used the NERSC supercomputer to process the large dataset and derive fundamental cosmic parameters with high accuracy.
A newly discovered quasar has surpassed the previous record holder as the earliest known structure in the universe, with a red shift of 5.50 and light journeying 13 billion years to reach Earth. The quasar's discovery sheds light on cosmic evolution and matter distribution at earlier stages of history.
Astronomers pinpointed a gamma-ray burst's precise location using coordinated observations from NASA satellites, providing data on X-rays and visible energy. The blast occurred over 10 billion light years away, roughly 2 billion years after the Big Bang.
Lawrence Schulman proposes a new scientific spin on science fiction, suggesting the possibility of reverse arrow systems where broken eggs re-form and timeline runs backwards. He uses statistical computer modeling to show that such systems could exist in regions with dark matter.
Researchers at Purdue University are developing a silicon detector, Si3, to analyze subatomic particles and test the widely accepted standard model of physics. The detector will help investigate why the universe is predominantly made of matter rather than antimatter.
The article explores the idea that time is an illusion, proposing a timeless universe where all configurations exist simultaneously. This concept is rooted in Einstein's general theory of relativity and quantum mechanics, suggesting an eternal, four-dimensional structure called Platonia.
John Moffat, a University of Toronto professor, proposes that the speed of light was not always constant but rather increased over time. This theory could help explain recent discoveries about the accelerating expansion of the universe and provide an answer to some cosmology problems.
Researchers used supercomputer simulations to test two competing scenarios explaining high-redshift galaxies. The collisional starburst scenario, which suggests small galaxies trigger intense bursts of star formation, received strong support from the simulation results.
Researchers at CU-Boulder are part of an international team experimenting with sub-atomic particles to explain how the universe came into existence. They aim to find out why there is more matter than antimatter in the universe.
Researchers use 'Cosmic Triangle' to plot evidence for accelerated universe expansion and high mass density of dark energy. The findings rule out models with low or negative mass density, pointing towards a flat universe dominated by dark energy.
The Inner Space/Outer Space II Symposium will explore questions of the hour in particle astrophysics, including the origins of the universe and dark matter. The four-day agenda includes presentations on Extra Dimensions, the Accelerating Universe, and Beyond the Standard Models.
The FUSE Satellite will observe wavelengths of light inaccessible to other telescopes, testing models of chemical evolution and determining the primordial abundance of deuterium. This will help scientists understand the origins of the universe, galaxy evolution, and chemical mixing and distribution.
Astronomers used numerical cosmology to study the earliest structures that formed in the universe, finding tiny star clusters containing 1,000-10,000 solar masses. These early clusters were likely the 'spark plugs' that started the formation of galaxies.
Rocky Kolb will discuss the first second in the life of the universe, describing a hot primordial soup of 'elementary' particles. He explores how this soup has cooled and condensed into the cosmic structure we see today. Kolb's work is praised for its clarity and insight.
A new theory called inflationary cosmology suggests that the universe may have begun as a fractal, with an exponential expansion period. This theory provides answers to several questions about the origin of the universe and its structure.
Theorists contemplate the impact of modern cosmology on Western society, noting a lack of social consensus and rootlessness. Joel Primack presents a new symbol, the cosmic uroboros, to embody an image of the cosmos consistent with modern science.
The accelerating universe is the top research advance of 1998, with scientists discovering that galaxies are flying apart at ever faster speeds. Researchers also made significant progress in understanding circadian rhythms, which could provide insight into overcoming jet lag and winter depression.
Physicists and astronomers observe distant supernovae to determine the universe is expanding at an accelerating rate, implying a mysterious property of space first proposed by Albert Einstein. The discovery was made possible by a unique collaboration between researchers using supercomputer facilities and powerful telescopes.
Researchers found supernovas are fainter than expected, suggesting the universe has expanded more slowly in the past and is now accelerating. This discovery supports the Cosmological Constant theory, which had been dismissed by Albert Einstein, and has significant implications for our understanding of the universe's behavior.
NSF-supported astronomers discovered that the expansion of the universe is accelerating, driven by a yet unknown force. Circadian rhythms research also made significant progress, with discoveries on genes regulating molecular cycles in fruit flies and cyanobacteria.
Astronomers believe the Universe has expanded since the big bang about 15 billion years ago, but a new theory proposes that it may have rotated like a merry-go-round for an indefinitely long period. If true, this rotation could have suddenly changed into expansion thanks to a 'vacuum phase transition.'
Astronomers will discuss Hubble Space Telescope findings on life in the universe, including environments suitable for life being probably plentiful. They'll also explore Mars and Jupiter's moon Europa, as well as two upcoming NASA missions searching for signs of life elsewhere in the solar system.
A team of astronomers detected a population of distant, dusty galaxies forming stars at rates 10-100 times higher than most optical sources. The discovery suggests that much of the star formation in the distant Universe may be hidden to visual observations, requiring a combination of both optical and submillimeter observations.
Researchers have modeled semilocal strings in the universe, which may explain why there is more matter than antimatter. The strings' behavior could also shed light on the formation of galaxies and large-scale structure.
Researchers at Boston University and Japan's University of Tokyo found evidence that neutrinos possess mass, contradicting the standard theory of particle physics. This discovery may impact our understanding of the universe's expansion and potential unification of particles and forces.
A team of astrophysicists and computer scientists has captured the entire observable universe in a computer simulation, depicting how gravity gathered ripples from the big bang into cosmic structures. This unprecedented model aims to better interpret data from large surveys and understand rarest structures in the cosmos.
Recent discoveries have revealed that Gamma-Ray Bursts originate from the most remote parts of the universe, releasing enormous amounts of energy in just 10 seconds. The high-redshift burst announcement adds to the body of research indicating these explosions are the most powerful in the Universe.
Scientists have discovered the most distant known object in the cosmos, a young galaxy existing when the universe was only 6% of its present age. The serendipitous discovery raises hopes for resolving two central questions in astrophysics: how and when did galaxies form.
Qaisar Shafi's research proposes two distinct components of dark matter, with the 'cold' component residing in galaxy haloes and the 'hot' component gravitationally trapped by large-scale structures. This new understanding could guide experimental work and incorporate dark matter into models of the universe.
A team of astronomers used a supercomputer to simulate the growth of cosmic structure in a region comparable to the entire observable Universe. The simulation revealed patterns of dark matter walls and filaments, as well as massive voids and giant galaxy clusters.
Astronomers Ari Buchalter and David Helfand study 103 galaxies to draw conclusions about the universe's shape. They believe their findings can be confirmed with results from 500 galaxies.
Marc Kamionkowski has been awarded the Helen B. Warner Prize for his significant contributions to cosmology, astrophysics, and particle physics. His research focuses on the cosmic microwave background radiation and its potential to clarify the origins of the universe.
Researchers studied 40 distant supernovae to measure the cosmic expansion rate, finding it will expand forever due to insufficient mass for gravity to slow it down. Type Ia supernovae provide natural mile-markers to track trends in the universe's expansion.
Case Western Reserve University physicist Glenn Starkman has received a four-year, $200,000 NSF grant to study the shape of the universe by mapping temperature fluctuations throughout space. He aims to develop new techniques to detect dark matter, which is believed to comprise much of the mass in the universe.
Researchers have found evidence of a 'missing' form of ordinary matter, known as baryonic matter, that was thought to be needed to form the cosmos billions of years ago. The findings suggest that this matter was spread throughout intergalactic space in a diffuse gas of hydrogen and helium atoms.
A team of astrophysicists discovered fewer low-energy photons in the universe than previously thought, suggesting that high-energy gamma rays may not be interacting with as many low-energy photons as expected. This observation could alter current theories of the history of the universe and galaxy formation.
Researchers found an unexpected orientation in space, measured through light polarization from distant galaxies. The 'corkscrew effect' indicates a universal axis that orients the universe.
A paper by Peter D. Usher presents evidence that Shakespeare's Hamlet is an allegory for the competition between cosmological models of Thomas Digges and Tycho Brahe. The play dramatizes the struggle to discover the real picture of the universe from appearances in the sky. Hamlet favors the Diggesian model, which is the forerunner of m...
Astronomers analyze over 1,700 gamma-ray bursts and find they are isotropic, meaning their distribution on the sky is almost perfectly random. This contradicts previous theories that placed these bursts within or just outside of our own Milky Way Galaxy.
Astronomers at Johns Hopkins University have developed a new method called photometric-redshift astronomy, which allows for rapid distance measurements to distant galaxies. This technique resolves a long-standing dilemma in cosmology research by enabling the study of galaxy evolution and dark matter.