Alexander Wolszczan, discoverer of the first extra-solar planets, has been featured on a Polish postage stamp celebrating the past millennium. His discovery in 1992 using the Arecibo radiotelescope suggested that planets might be plentiful throughout the universe.
Lawrence Livermore physicist Bruce Remington explores using lab astrophysics to recreate supernovae explosions, understand cosmic rays, and study black holes. Lab experiments also aim to probe planet interiors and gamma-ray bursts.
The DEIMOS instrument will multiply the power of current Keck spectroscopy by a factor of seven, enabling observations of distant galaxies and shedding light on the formation and evolution of galaxies. With its massive detector and advanced optics, DEIMOS will create the most comprehensive map of the distant universe ever attempted.
A team of UW researchers has determined a more precise solar neutrino production figure, finding that the fusion rate is 17% greater than previously estimated. This new finding means the sun must be producing 17% more energetic neutrinos, with an accuracy of 3-4 percentage points.
The discovery provides the first evidence that planets at earthlike distances can survive the evolution of their host star into a giant. The planet orbits iota Draconis, an old star with a radius 13 times that of the sun, and has an elliptical orbit that takes 1.5 years to complete.
A team of astronomers has directly observed a Dark Matter object, confirming the theory that it consists of small, faint stars in galaxies like our Milky Way. The detection was made using the Hubble Space Telescope and the European Southern Observatory's Very Large Telescope.
Researchers used a powerful computing cluster to simulate moon motions over 1 billion years, discovering that the sun's gravity pulls smaller moons from their orbits. The study reveals how giant planets capture and shape the orbits of tiny moons, shedding light on Jupiter's unusual satellite system.
Astronomers detected sodium in the atmosphere of a gas giant exoplanet orbiting a yellow star. The team used Hubble's spectrometer to analyze light passing through the planet's atmosphere, revealing less sodium than expected, which may indicate high-altitude clouds blocking some light.
Cosmologists have developed a new simulation model that suggests the first star in the universe formed from a cloud of hydrogen and helium at least 100 times more massive than our sun. The simulations provide insights into the chemical elements produced in stars, including metals heavier than lithium.
Researchers analyzed sound waves from the Solar and Heliospheric Observatory to map the temperature and flow structure beneath sunspots. The study revealed fast-moving streams of hot plasma converging into a gigantic vortex that penetrates the solar surface.
Researchers at Texas A&M University have made a precise measurement of solar neutrinos, resolving a long-standing puzzle. By studying the proton transfer reaction, they found that the number of solar neutrinos is lower than expected by around 20 percent compared to previous calculations.
The National Science Foundation has established FOCUS, a Physics Frontier Center at the University of Michigan, to advance coherent control in quantum, ultrafast, and high-field physics. The center will focus on three major research components: High Field Control, Ultrafast Control, and Quantum Control.
The center supports an interdisciplinary team of scientists aiming to explore the first signals detected from gravitational waves generated by massive objects in the universe. Researchers anticipate collecting data from new detectors in the US, Europe, and Japan, plus a space-based detector.
Researchers found that young stars in Orion exhibit high levels of X-ray flaring, sufficient to explain the production of unusual isotopes locked away in ancient meteorites. This discovery suggests that our Sun may have also formed these isotopes during its baby years.
A team of scientists led by Leisa Townsley has found evidence of X-ray-emitting gas in the Rosette Nebula, a star-forming region. This gas is thought to be created by the collision of stellar winds from massive stars and may play a significant role in shaping the galaxy's interstellar medium.
A study by Princeton University and the Institute for Advanced Study suggests that Earth's varying reflections can provide clues about distant, potentially habitable planets. By analyzing changes in light over time, scientists may gain insights into a planet's weather, oceans, or even plant life.
A research team led by University of Colorado at Boulder Professor Roger Bilham failed to find alternatives to huge Indian earthquakes, concluding that at least one 8.1-8.3 magnitude earthquake and up to seven are overdue due to the movement of the Indian plate towards Tibet.
Research suggests that brown dwarfs don't require special conditions to form, but rather are ejected from multiple-star systems due to gravitational interactions. This process affects their growth and ultimately determines their fate as either a normal star or a brown dwarf.
Three Dutch researchers, Ewine van Dishoeck, Daan Frenkel, and Dirkje Postma, have been awarded the NWO/SPINOZA Award for their internationally recognized excellence in science. The award recognizes their exceptional contributions to molecular astrophysics, computational physical chemistry, and pathophysiology of respiratory disorders.
Scientists using Chandra X-ray Observatory discovered a supernova remnant in the center of our galaxy, which may help regulate a nearby supermassive black hole. The remnant is believed to be responsible for intense feeding of material into the black hole, followed by a period of starvation.
A team of astronomers, including an undergraduate researcher, detect the presence of massive stellar explosions in a distant galaxy using quasar light. The discovery reveals six super bubbles formed at nearly the same time, releasing energy equivalent to 10,000 suns over their lifetimes.
Frank Shu, a renowned expert in theoretical astrophysics and star formation, received the Dannie Heinemann Prize for his groundbreaking research on various topics including spiral structure, stellar dynamics, and planetary rings. The award recognizes his significant contributions to the field of astrophysics.
Astronomers using Chandra X-ray Observatory have discovered that protostars, the youngest stage of star formation, are marked by powerful X-rays from plasma ten times hotter and 100 to 100,000 times brighter than our Sun's flares. This has provided the closest look yet at the youngest stars in the Universe.
Researchers detect first P Cygni profile in X-rays, revealing a 4.5-million-mile-per-hour wind from a compact pair of stars. The discovery provides new insights into stellar winds and their role in astrophysics.
Astronomers use a flickering quasar image to estimate the expansion rate of the Universe and measure distances to extragalactic objects. The Chandra X-ray Observatory's mirage technique provides a promising method to avoid uncertainties in classic distance-ladder techniques.
The Interplanetary Network detected a gigantic gamma-ray burst, the most distant ever observed, from a dying star 30 times more massive than the sun. The burst is believed to have occurred 11 billion years ago and has been traveling through space for the same amount of time.
Dr. Oliver Manuel proposes that the sun and planets formed from debris of a massive supernova explosion, contradicting conventional astrophysics theories. Recent data from NASA's Galileo probe supports his claims by detecting traces of strange xenon gases in Jupiter's atmosphere.
A new X-ray telescope will allow astrophysicists to peer down the mouths of black holes with unprecedented resolution. The instrument can resolve an object the size of a Frisbee on the sun, enabling the study of stellar systems and astrophysical jets.
Scientists have found a mid-mass black hole in the M82 galaxy, which packs the mass of at least 500 suns into a region about the size of the Moon. The discovery opens a new field of research and suggests that such black holes may exist in our own galaxy.
The University of California and Caltech are designing a 30-meter telescope called the California Extremely Large Telescope (CELT) to study distant galaxies and star formation. The telescope will have a segmented primary mirror made up of 1,080 small hexagonal mirrors, and its cost is estimated to be around $500 million.
Astronomers have directly detected a new type of stellar flare on the binary system HR 1099, challenging current models and providing insight into flare physics. The flares were observed in a narrow temperature range of gas on the star, distinct from the hot gas that emits X-rays.
A new study suggests that most gamma radiation reaching Earth is leftover energy from massive shock waves caused by gravitational forces. The collision of electrons with low-energy photons could be a sign of ordinary matter captured within intergalactic clouds, shedding light on the 'missing matter' puzzle.
The Cangaroo II telescope detects gamma rays emitted by black holes and their surrounding electric and magnetic fields. Researchers aim to study the enormous effect of black holes on galaxy energy and evolution.
Scientists have imaged the pressure fronts in a colossal cosmic 'weather system' produced by the collision of two giant clusters of galaxies. The data reveals a bright but relatively cool central region embedded in a large cloud of hot gas. This is the first detailed look at the late stages of this merger process.
Astronomers have created an energy spectrum of hot gas surrounding a giant black hole using NASA's Chandra X-ray Observatory. The study reveals a warm blanket of gas expanding rapidly away from the black hole and provides insights into the complex nature of inflowing and outflowing gas in galaxies.
The discovery sheds light on the formation and death of stars, revealing intricate structures such as neutron stars, black holes, and X-ray binary systems. The image provides valuable insights into the distribution of heavy atoms throughout the universe, offering a glimpse into the early history of the cosmos.
A team of scientists used Chandra to observe the Andromeda Galaxy and found a supermassive black hole with a surprisingly cool gas funneling into it. The temperature of this gas is only several million degrees, unlike other X-ray sources in the galaxy that reach millions of degrees.
A team of astronomers has used Chandra to map the distribution of silicon, sulfur, and iron in Cassiopeia A, a supernova remnant. The findings provide insights into how elements are produced in stars and their subsequent release into space.
Lawrence Krauss, a prominent astrophysicist, has won the AAAS Public Understanding of Science and Technology Award for his efforts to improve communication between scientists and the public. His work aims to promote scientific literacy and critical thinking, particularly in addressing creationism in public schools.
Scientists used NASA's Chandra X-ray Observatory to capture a rare glimpse of X-radiation from the early phases of a supernova. The observations revealed that the supernova shed a relatively small amount of matter before it exploded, compared to other supernovae.
Researchers found that massive planets can trigger the formation of additional planets through violent processes, leading to a different-looking system. The study suggests an upper limit to planetary growth due to unstable conditions, raising questions about the possibility of habitable Earth-like planets in such environments.
Six new planets have been discovered orbiting nearby stars, bringing the total number of known planets outside our solar system to 28. The newly discovered planets are located within the habitable zones of their stars and have temperatures suitable for liquid water to exist in one case.
Researchers have found two nearby streams of stars that appear to be debris from a single dwarf galaxy torn apart by the Milky Way's gravity about 10 billion years ago. These relic streams are part of the Milky Way's outer structure and provide insights into its formation.
Researchers discuss alternative theories for Magnetar outbursts, including the role of intense magnetic fields and environmental influences. The magnetar theory suggests that giant flare events occur when the neutron crust cracks, while an alternative explanation proposes a relativistic wind of interstellar material surrounding the SGR.
Astronomers have found evidence of a prompt high-energy afterglow component from a gamma-ray burst, suggesting multiple energy emission processes and mechanisms. This discovery supports the idea that different activities cause what appears to be a chaotic explosion.
A gamma-ray burst may have melted primordial dust grains, seeding the formation of meteorites and rocky planets like Earth. The theory suggests that only one Sun-like star in a thousand would be close enough to form chondrules.
The 'braking glitch' in the spin rate of a soft gamma repeater (SGR) suggests a massive starquake may have occurred. The SGR's rotational period increased steadily until a rapid decrease was observed, indicating a massive energy release.
Dr. Colleen Wilson-Hodge, a NASA astrophysicist, has discovered two new X-ray pulsars using the Burst and Transient Source Experiment on NASA's Compton Gamma Ray Observatory. The pulsars are powered by accretion of material from companion stars and have strong gravity that pulls matter toward their surfaces.
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.
A worldwide study of the Sun's quiet period reveals insights into solar activity and its effects on Earth. The research, published in the Journal of Geophysical Research, explores the Sun's large-scale, stable structures that dominate the solar corona at solar minimum.
Scientists are using an old photographic technique to study nuclear physics and potentially develop a clean, long-term power source through thermonuclear fusion. The petawatt laser facility generates high-energy gamma rays that can be used to trigger tiny fusion reactions.
An asteroid approximately 30-50 metres across has been discovered in an orbit close to Earth's, likely originating from the Moon. The object's unusual nearly circular orbit is unlike most comets and asteroids that cross the Earth's orbit.
The James S. McDonnell Centennial Fellowships recognize scientists and scholars whose work will significantly contribute to knowledge development and its application. The winners, selected from five categories, will receive $1 million fellowships to support their research.
The Deutsche Forschungsgemeinschaft has awarded the Eugen- and Ilse-Seibold Prize to Hans-Joachim Queisser and Yasuo Tanaka for their contributions to scientific studies in Japan and Germany. The prize promotes understanding between the two countries through fellowships and project funding.
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.
Detailed studies of 12 stars with Jupiter-mass planets show concentrations of heavy elements two to three times greater than in the sun. The discovery supports the theory that stars born in heavy-element-enriched clouds are more likely to harbor giant planets.
Astronomers have discovered large numbers of previously unknown stars in the Virgo Cluster using dying green stars as tools. The findings suggest that at least 22% of Virgo's light is coming from these hidden stars, and could affect estimates of universe mass.
A rapidly spinning neutron star can naturally produce a Gamma-ray burst by oscillating and radiating its rotation energy. The spin-down process is triggered by the gravitational wave instability, which grows explosively in hours or minutes, strengthening the magnetic field and eventually radiating away all remaining rotation energy.
A team of astronomers led by Bo Reipurth and John Bally observed that ultraviolet radiation from nearby massive stars destroyed the cocoons of gas and dust surrounding young stars, revealing billions of miles long supersonic jets. The destruction has provided new insight into star birth and evolution, and may have implications for the ...
Researchers used virtual reality to visualize the Earth's electromagnetic tail, a challenging problem for astrophysicists. They discovered that charged particles follow a moebius strip path, which they confirmed using 3D imaging equipment.