Researchers at Los Alamos National Laboratory have identified two distinct regions with an excess of cosmic rays, challenging nearly a century-old understanding of galactic magnetic fields. The Milagro observatory recorded over 200 billion cosmic-ray collisions, revealing statistically significant peaks in specific regions of the sky.
The MARS Observatory is a deep-sea ocean observatory that allows researchers to continuously monitor the dark world of the deep sea. It enables real-time data and video transmission from instruments installed on the seafloor.
A new RAND Corporation study finds that adolescents exposed to high levels of sexual content on TV are twice as likely to be involved in a pregnancy over three years. The study suggests that TV programming typically does not highlight the risks and responsibilities of sex, contributing to higher teen pregnancy rates.
Researchers used data from NASA's Chandra X-ray Observatory and Compton Gamma Ray Observatory to study the Bullet Cluster, where two large clusters of galaxies collided. The results show that the antimatter fraction in the cluster is less than three parts per million, ruling out significant amounts of antimatter on scales of about 65 m...
A team of astronomers has discovered a potential 'wild cousin' of the infamous exploding star supernova 1987A in a nearby galaxy. The newly found supernova, SN1996cr, exhibits similar characteristics to '87A and is an impressive 1,000 times brighter.
The detection of GRB 080913 marks the most distant gamma-ray burst ever seen, occurring 12.8 billion light-years away. This finding reveals that the universe was less than one-seventh its present age when the star exploded.
Scientists have developed a new X-ray technique called Analyzer-Based X-ray Imaging (ABI) for early breast cancer detection, offering high spatial resolution and sensitivity. The technique has shown promising results in distinguishing microcalcifications and improving the definition of tumor shapes and margins.
The Fermi Gamma-ray Space Telescope has revealed the entire gamma-ray sky, discovering pulsars in our galaxy and powerful processes near supermassive black holes. The telescope's first all-sky image shows glowing gas, blinking pulsars, and a flaring galaxy billions of light-years away.
The Fermi Gamma-ray Space Telescope has revealed its first all-sky map in gamma rays, showcasing the glowing gas of the Milky Way and pulsars in unprecedented detail. The telescope's high-energy capabilities will enable discoveries of new pulsars and reveal powerful processes near super-massive black holes.
An international team produced two of the brightest, sharpest x-ray holograms of microscopic objects ever made, with resolutions of up to 50 nanometers. The technique used is called massively parallel x-ray Fourier-transform holography with 'coded apertures', inspired by the pinhole camera.
Researchers have used X-ray diffraction to create the first 3-D images of aerogel structures at nanometer-scale resolution. The study reveals a complex 'blob-and-beam' structure that explains the material's surprising strength and suggests ways to improve its properties.
Researchers find large amounts of ozone being destroyed over the tropical Atlantic Ocean, potentially leading to increased greenhouse gas methane. The discovery was made using data from the Cape Verde Atmospheric Observatory and has significant implications for future climate predictions.
The Nanoprobe achieves 30-nanometer resolution using x-rays with photon energies between 3-30 kiloelectron volts. It combines scanning-probe and full-field transmission imaging for three-dimensional visualizations and quantitative analysis of elemental composition and chemical states.
Scientists at Argonne National Laboratory have devised a new type of next generation light sources that can create x-rays up to one hundred million times brighter than currently operating machines. The X-FELO oscillator is expected to open up breakthrough scientific opportunities in various research fields.
NASA's GLAST mission was launched successfully aboard a Delta II rocket from Cape Canaveral Air Force Station in Florida. The observatory is now on-orbit, with all systems operating as planned.
The Gamma-ray Large Area Space Telescope (GLAST) will search for answers to long-standing questions about dark matter, black holes, and gamma-ray bursts. With its extraordinary sensitivity and wide field-of-view, GLAST has the potential to detect thousands of hitherto unknown gamma-ray sources.
Astronomers captured X-ray outburst from supernova SN 2008D, shedding light on early processes. The explosion was likely from a massive star with retained helium layer, providing valuable information for understanding stellar deaths.
Dr. Stephen Reynolds and his team discovered the youngest known supernova remnant G1.9+0.3, estimated to be around 100-140 years old, using Chandra X-Ray Observatory images from 2007 and 1985. The discovery suggests that a supernova explosion occurred relatively recently, providing insights into the life cycle of galaxies.
Astronomers have tracked a recent supernova explosion in the Milky Way galaxy using NASA's Chandra X-ray Observatory and NRAO's VLA. The discovery confirms the supernova is about 140 years old, making it the youngest recorded in the galaxy.
The Gamma-Ray Large Area Space Telescope (GLAST) will study the gamma-ray sky in unprecedented detail, revealing extreme astrophysical processes like pulsars and supermassive black holes. The mission aims to comprehend the origin and distribution of dark matter.
A team of Japanese astronomers has discovered that the Milky Way's central black hole, Sagittarius A*, let loose a powerful flare three centuries ago. The finding resolves a long-standing mystery about the black hole's quiescent nature.
Research published in BMC Complementary and Alternative Medicine suggests that the berries of Solanum villosum have potential for keeping mosquitoes at bay. The study found that S. villosum was particularly effective at eliminating Stegomyia aegypti larvae, which can spread diseases like dengue fever.
A NASA satellite has detected a record-breaking gamma ray burst explosion halfway across the universe. The explosion was seen with the naked eye from Earth, shattering previous records and providing insights into the universe's most distant objects.
Scientists confirm 1966 prediction that most energetic particles in the universe rarely reach Earth at full strength due to cosmic microwave background radiation. The GZK cutoff is a suppression of ultrahigh-energy cosmic rays, suggesting they come from galaxies beyond 150 million light years away.
Researchers have discovered a neutron star that undergoes a dramatic transformation from a pulsar to a magnetar, providing insight into the evolutionary connection between these two types of ultradense objects. The discovery was made using data from NASA's Rossi X-ray Timing Explorer and Chandra X-ray Observatory satellites.
Scientists from UK and international teams have been part of the Swift satellite project, which has discovered over 292 gamma-ray bursts since its launch in 2004. The satellite's rapid response capabilities have been instrumental in understanding these cosmic events, with recent discoveries pinpointing the origins of black holes.
Researchers using Chandra X-ray Observatory data have reported a possible detection of a binary star system that was later destroyed in a supernova explosion. The new method provides great promise for finding the detailed origin of these cosmic events.
The GLAST observatory will explore extreme environments and search for new laws of physics, with a scheduled May 16 launch from Cape Canaveral Air Force Station. The rocket's first stage has arrived at the space station, joining the second stage and solid rocket motors.
Scientists study fluid structures in moist sand using x-ray microtomography and find that the fluid and grains coexist in a filigree structure. This discovery explains the universal stiffness of wet granules, relevant to various industries such as pharmaceuticals and food production.
Researchers developed a novel method to produce dark-field x-ray images using nanostructured gratings, enabling diagnosis of osteoporosis, breast cancer, and Alzheimer's disease. This technology can be adapted to existing medical equipment, improving image clarity and sensitivity.
New research by Arecibo Observatory increases the mass limit for neutron star formation into black holes, suggesting they may be more rare. Neutron stars are found to remain stable between 1.9 and 2.7 sun masses, contradicting previous thought.
Two distinct gas and dust clouds formed by different types of supernova explosions are detected in DEM L316 nebula, with one shell containing more iron suggesting a Type Ia supernova. The two shells appear to be aligned by chance in the sky due to their vastly different ages.
A new study using Chandra X-ray Observatory results provides evidence that many supermassive black holes are spinning extremely rapidly. The research suggests that these fast-spinning black holes can drive powerful jets, pumping energy into their environment and affecting galaxy growth.
Astronomers have discovered a rare type of star system containing a black hole that suddenly began glowing brightly with X-rays. The system, dubbed CXOU J132518.2-430304, is thought to be a binary star system where one star collapsed to form a black hole.
An international team, including University of Oregon scientists, suggests two possible explanations for the lack of a gravitational wave signal in February's gamma ray burst from Andromeda. The findings propose either a merger event beyond Andromeda or a soft gamma-ray repeater within Andromeda as potential origins.
The Pierre Auger Collaboration has found an anisotropy in cosmic ray arrival directions correlated with galaxies containing active galactic nuclei. This discovery suggests that AGN are the source of the most energetic particles reaching Earth.
A team of astronomers, led by Dr. Edo Berger, have observed a surprisingly active magnetic field on the ultracool low-mass star TVLM513-46546, challenging the theory that cooler stars are simple and quiet. The star's complex magnetic field environment may indicate unusual activity beneath its surface or possibly even an unseen companion.
A five-year study will evaluate the performance of chest X-ray CAD in identifying hard-to-detect lung cancers, aiming to improve patient survival rates. The study, funded by the State of Ohio, will involve 9,000 test subjects and assess the software's ability to identify actionable pulmonary nodules.
Scientists have established a correlation between high-energy cosmic rays and distant active galactic nuclei (AGNs), suggesting massive black holes in the center of galaxies as a possible source. The Pierre Auger Observatory detected 28 cosmic rays with energies greater than 60 EeV, most of which originated from locations near known AGNs.
The Pierre Auger Observatory has found that the sources of the highest-energy cosmic rays are linked to nearby galaxies with active nuclei in their centers. This discovery provides new insights into the origin and acceleration of these particles.
The Pierre Auger Observatory has found that active galactic nuclei, powered by super-massive black holes, are the most likely source of the highest-energy cosmic rays. The sources of these particles are not distributed uniformly across the sky, but rather linked to nearby galaxies with active nuclei.
Scientists from 17 countries identify Active Galactic Nuclei (AGNs) as the most likely source of the highest-energy cosmic rays using data-gathering equipment designed at Michigan Tech. The findings, reported in Science journal, bring researchers closer to understanding the origin of ultra-high energy particles.
Astronomers have discovered a massive black hole with a mass 24 to 33 times that of our Sun, exceeding expectations. The discovery was made using two NASA satellites and suggests that stellar-mass black holes can be much larger than previously thought.
Astronomers study G292.0+1.8 supernova remnant to understand complex star death and dispersal of elements like oxygen into next generation of stars and planets. The new Chandra image shows an intricately structured debris field with varying temperatures, indicating lopsided explosion.
Astronomers have found an exceptionally massive black hole in orbit around a huge companion star in the nearby galaxy M33, with a mass of 15.7 times that of the Sun. The discovery raises questions about how such a big black hole could have formed.
Recent observations from NASA and Japanese X-ray observatories have helped clarify the origin of cosmic rays. The study, published in Nature, suggests that magnetic fields in supernova remnants are stronger than previously thought, enabling them to accelerate charged particles to enormous energies.
Astronomers have pioneered a new technique to measure the properties of neutron stars, allowing them to study the extreme conditions under which matter is packed. Using XMM-Newton and Suzaku satellites, scientists observed distorted space-time around three neutron stars, confirming predictions by Einstein's theory of general relativity.
Oregon State University will lead a component of the National Science Foundation's Ocean Observatories Initiative, located in the Pacific Northwest's coastal ocean. The $331.5 million research facility project will create a distributed, multi-tiered observatory spanning global, regional and coastal scales.
TrES-4 is the largest known exoplanet, about 70% bigger than Jupiter but less massive, making it a planet of extremely low density. It orbits its host star in three and a half days and is very hot due to its close proximity.
A new study using Chandra finds that younger, more distant galaxy clusters contain far more actively growing supermassive black holes than older, nearby ones. This rapid growth allows these black holes to thrive and influence their host galaxies.
Researchers Zeb Hogan and Sudeep Chandra document and protect massive freshwater fishes in Mekong Delta, critical to understanding and preservation of these species. The project highlights the global 'freshwater extinction crisis' affecting numerous species.
The discovery reveals how efficient neutron stars can be as cosmic power factories and shows they rival black holes in generating powerful jets. The X-ray jet is found to be almost as efficient as one from a black hole, with a surprising high percentage of energy converted into powering the jet.
The Linac Coherent Light Source (LCLS) will be the world's first X-ray free electron laser, producing pulses of light one billion times brighter than current sources. The device will enable scientists to discover new states of matter and probe chemical reactions in real-time.
Florida Tech associate professor Eric Perlman has received $490,400 in funding from NASA's Long-term Space Astrophysics grant program to study jets and their impact on cosmic rays. His work will access the Hubble Space Telescope and Chandra X-ray Observatory to further understanding of jet dynamics and emissions.
The National Ecological Observatory Network has selected candidate core wildland sites across the United States for deployment, with a focus on understanding climate change and its impacts on ecology. The selected sites will host distributed sensor networks and experiments to record and archive ecological data for at least 30 years.
Astronomers can now compete for coordinated observing time on both GLAST and NRAO radio telescopes to study celestial objects in multiple wavelengths. This collaboration enables the study of flares from blazars, a key area of research to understanding supermassive black holes.
Astronomers have discovered a massive transiting planet, TrES-3, with a 31-hour year, orbiting its parent star about 1,500 light-years away. The planet is twice the mass of Jupiter and one of the planets with the shortest known periods.
Astronomers discover a bright arc of extremely hot gas in a massive galaxy cluster, suggesting an exceptionally dramatic event, such as a collision between two clusters. The temperature and mass of the cluster make it a giant among giants, with a quadrillion suns' worth of mass bound by its hot gas.
The Hubble Space Telescope provides a detailed view of Messier 81, revealing young blue stars and glowing regions of fluorescent gas. The galaxy's central black hole is 15 times the mass of the Milky Way's black hole.
Astronomers using NASA's Swift satellite have discovered that energetic flares seen after gamma-ray bursts are a continuation of the burst itself. GRBs release enormous energy in seconds, and long-duration bursts come from massive star collapse, forming black holes or neutron stars.