English
Arabic
Chinese (Simplified)
Dutch
Esperanto
French
German
Greek
Italian
Japanese
Korean
Portuguese
Russian
Spanish
UrduNothing seems more familiar than the sun in the sky. But mysterious swirls, jets, and flashes of powerful light that scientists cannot explain occur in the sun’s outer atmosphere all the time. Now, researchers at PPPL have gained insight into these puzzling phenomena.
Tag: ASTROPHYSICS
Observation, simulation, and AI join forces to reveal a clear universe
Japanese astronomers have developed a new artificial intelligence (AI) technique to remove noise in astronomical data due to random variations in galaxy shapes. After extensive training and testing on large mock data created by supercomputer simulations, they then applied this…
Closing the gap on the missing lithium
Researchers account for some of the lithium missing from our universe
‘There may not be a conflict after all’ in expanding universe debate
In a new review paper accepted to the Astrophysical Journal, Freedman gives an overview of the most recent observations. Her conclusion: the latest observations are beginning to close the gap. That is, there may not be a conflict after all, and our standard model of the universe does not need to be significantly modified.
Black holes swallow neutron stars like ‘Pac Man’
Scientists have for the first time detected black holes eating neutron stars, “like Pac Man”, in a discovery documenting the collision of the two most extreme and enigmatic objects in the Universe. The Laser Interferometer Gravitational-Wave Observatory (LIGO) in the…
The final dance of mixed neutron star-black hole pairs
Gravitational wave detectors have observed a new type of cataclysmic event in the cosmos: the merger of a neutron star with a black hole. The phenomenon was detected twice in January 2020. Several hypotheses could explain the existence of such…
Earth-like biospheres on other planets may be rare
A new analysis of known exoplanets has revealed that Earth-like conditions on potentially habitable planets may be much rarer than previously thought.
Life in these star-systems could have spotted Earth
Scientists at Cornell University and the American Museum of Natural History have identified 2,034 nearby star-systems – within the small cosmic distance of 326 light-years – from which life could find Earth merely by watching our pale blue dot cross our sun.
Researchers trace dust grain’s journey through newborn solar system
A research team led by the University of Arizona has reconstructed in unprecedented detail the history of a dust grain that formed during the birth of the solar system more than 4.5 billion years ago.
Mystery solved: Dust cloud led to Betelgeuse’s ‘Great Dimming’
The star Betelgeuse became visibly darker in 2019 and 2020, puzzling astronomers; new images show that the star was partially concealed by a cloud of dust, solving the mystery of the ‘Great Dimming’ of Betelgeuse
The give and take of mega-flares from stars
The long relationships between stars and the planets around them – including the Sun and the Earth – may be even more complex than previously thought. This is one conclusion of a new study involving thousands of stars using NASA’s…
How a supermassive black hole originates
UC Riverside-led study points to a seed black hole produced by a dark matter halo collapse
ALMA discovers earliest gigantic black hole storm
Researchers using the Atacama Large Millimeter/submillimeter Array (ALMA) discovered a titanic galactic wind driven by a supermassive black hole 13.1 billion years ago. This is the earliest-yet-observed example of such a wind to date and is a telltale sign that…
Space scientists solve a decades-long gamma-ray burst puzzle
Astrophysicists from the University of Bath in the UK find the magnetic field in gamma-ray bursts is scrambled after the ejected material crashes into, and shocks, the surrounding medium
When testing Einstein’s theory of general relativity, small modeling errors add up fast
Small modeling errors may accumulate faster than previously expected when physicists combine multiple gravitational wave events (such as colliding black holes) to test Albert Einstein’s theory of general relativity, suggest researchers at the University of Birmingham in the United Kingdom.…
Cosmic rays: Coronal mass ejections and cosmic ray observations at Syowa Station in the Antarctic
Solar activities, such as CME(Coronal Mass Ejection), cause geomagnetic storm that is a temporary disturbance of the Earth’s magnetosphere. Geomagnetic storms can affect GPS positioning, radio communication, and power transmission system. Solar explosions also emit radiation, which can affect satellite…
Dark matter is slowing the spin of the Milky Way’s galactic bar
The spin of the Milky Way’s galactic bar, which is made up of billions of clustered stars, has slowed by about a quarter since its formation, according to a new study by researchers at University College London and the University of Oxford
Study finds lightning impacts edge of space in ways not previously observed
Solar flares jetting out from the sun and thunderstorms generated on Earth impact the planet’s ionosphere in different ways, which have implications for the ability to conduct long range communications
Star’s death will play a mean pinball with rhythmic planets
Four planets locked in a perfect rhythm around a nearby star are destined to be pinballed around their solar system when their sun eventually dies, according to a study led by the University of Warwick that peers into its future
Four collaborative research centres at Goethe University receiving funding
German Research Foundation funds new CRC Transregio 326 „Geometry and arithmetic of uniformized structures” – CRC 1039 on medical signal path research enters third funding period – Goethe University involved in two further CRC-Transregios
Key to Carbon-Free Cars? Look to the Stars
In a decade-long quest, scientists at Berkeley Lab, the University of Hawaii, and Florida International University uncover new clues to the origins of the universe – and land new chemistry for cleaner combustion engines
Liquid water on exomoons of free-floating planets
The moons of planets that have no parent star can possess an atmosphere and retain liquid water. Astrophysicists at LMU have calculated that such systems could harbor sufficient water to make life possible – and sustain it. Water – in…
CHIME telescope detects more than 500 mysterious fast radio bursts in its first year of operation
Observations quadruple the number of known radio bursts and reveal two types: One-offs and repeaters
NASA’s Roman Space Telescope selects 24 flight-quality heat-vision ‘eyes’
NASA’s Nancy Grace Roman Space Telescope team recently flight-certified all 24 of the detectors the mission needs. When Roman launches in the mid-2020s, these devices will convert starlight into electrical signals, which will then be decoded into 300-megapixel images of…
Qorvo provides key enabling tech for identifying, mapping threats from near-earth objects
Qorvo® (Nasdaq: QRVO), a leading provider of innovative radio frequency (RF) solutions that connect the world, today announced its Spatium® solid-state power amplifier (SSPA) technology will play a key role in a new planetary radar experiment using the Green Bank…
Finding quasars: Rare extragalactic objects are now easier to spot
Astrophysicists in the UK have developed a new method for finding changing-looking quasars — important but extremely rare objects in deep space
Cosmic cartographers map nearby Universe revealing the diversity of star-forming galaxies
Study reveals that the makeup and life cycle of star-forming clouds is dependent on location
An unprecedented survey of the ‘nurseries’ where stars are born
Study of nearby galaxies gives new insights into star formation
Axions could be the fossil of the universe researchers have been waiting for
Finding the hypothetical particle axion could mean finding out for the first time what happened in the Universe a second after the Big Bang, suggests a new study published in Physical Review D on June 7. How far back into…
GMRT measures the atomic hydrogen gas mass in galaxies 9 billion years ago
A team of astronomers from the National Centre for Radio Astrophysics (NCRA-TIFR) in Pune, and the Raman Research Institute (RRI), in Bangalore, has used the Giant Metrewave Radio Telescope (GMRT) to measure the atomic hydrogen gas content of galaxies 9…
The origin of the first structures formed in galaxies like the Milky Way identified
An international team of scientists led from the Centre for Astrobiology (CAB, CSIC-INTA), with participation from the Instituto de Astrofísica de Canarias (IAC), has used the Gran Telescopio Canarias (GTC) to study a representative sample of galaxies, both disc and…
Stream of stars extends thousands of light-years across the Milky Way
It’s hard to see more than a handful of stars from Princeton University, because the lights from New York City, Princeton and Philadelphia prevent our sky from ever getting pitch black, but stargazers who get into more rural areas can…
Holes in the solar atmosphere: Artificial intelligence spots coronal holes to automate space weather
Scientists from the University of Graz (Austria), Skoltech and their colleagues from the US and Germany have developed a new neural network that can reliably detect coronal holes from space-based observations. This application paves the way for more reliable space…
Physicists report definitive evidence how auroras are created
The aurora borealis, or northern lights, that fill the sky in high-latitude regions have fascinated people for thousands of years. But how they’re created, while theorized, had not been conclusively proven. In a new study, a team of physicists led…
Jets from massive protostars might be very different from lower-mass systems
VLA reveals new details of protostellar jet
Front-row view reveals exceptional cosmic explosion
Observation challenges established theory of gamma-ray bursts in the universe
Which way does the solar wind blow?
Using supercomputers, researchers develop new software for improved space weather prediction
Astronomers discover a massive star cluster, of intermediate age, in the constellation Scutum
An international team of astrophysicists led by the Stellar Astrophysics Group of the University of Alicante (UA), the Instituto de Astrofísica de Canarias (IAC), and the University of Valparaíso (Chile) has discovered a massive cluster of stars of intermediate age…
Largest aerospace society names Sandia researcher ‘Engineer of the Year’
‘Jack-of-all-trades’ improves future spacefaring calculations
A new dimension in the quest to understand dark matter
UC Riverside dark matter research program targets assumptions about particle physics
Study reveals diverse magnetic fields in solar-type star-forming cores
Magnetic fields are ubiquitous throughout our Milky Way Galaxy and play a crucial role in all dynamics of interstellar medium. However, questions like how Solar-type stars form out of magnetized molecular clouds, whether the role of magnetic fields changes at…
Victoria M Kaspi and Chryssa Kouveliotou receive the 2021 Shaw Prize in Astronomy
The Shaw Prize in Astronomy 2021 is shared equally by Victoria M. Kaspi, Professor of Physics and Director of McGill Space Institute, McGill University, Canada and Chryssa Kouveliotou, Professor and Chair, Department of Physics at George Washington University, USA for…
Turbulence in interstellar gas clouds reveals multi-fractal structures
In interstellar dust clouds, turbulence must first dissipate before a star can form through gravity. A German-French research team has now discovered that the kinetic energy of the turbulence comes to rest in a space that is very small on…
Dark Energy Survey releases most precise look at the universe’s evolution
The Dark Energy Survey collaboration has created the largest ever maps of the distribution and shapes of galaxies, tracing both ordinary and dark matter in the universe out to a distance of over 7 billion light years. The results are based on the first three years of data from the survey.
Gravitational wave search no hum drum hunt
Scientists refine the search for enigmatic continuous grav waves
Magnetized threads weave spectacular galactic tapestry
Threads of superheated gas and magnetic fields are weaving a tapestry of energy at the center of the Milky Way galaxy. A new image of this new cosmic masterpiece was made using a giant mosaic of data from NASA’s Chandra…
Scientists find new insights into the elusive continuous waves from spinning neutron stars
Five years on from the first discovery of gravitational waves, an international team of scientists, including from the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav), are continuing the hunt for new discoveries and insights into the Universe. Using…
UMass Amherst astronomer reveals never-before-seen detail of the center of our galaxy
New image made using NASA’s Chandra X-Ray Observatory hints at previously unknown interstellar energy source at the Milky Way center
Dark energy survey releases most precise look at the universe’s evolution
First three years of survey data uses observations of 226 million galaxies over 1/8 of the sky
Experiments validate the possibility of helium rain in Jupiter and Saturn
An international team of researchers, including scientists from Lawrence Livermore National Laboratory, the French Alternative Energies and Atomic Energy Commission, the University of Rochester and the University of California, Berkeley, detail experimental evidence validating the existence of helium rain inside of planets like Jupiter and Saturn, supporting a nearly 40-year-old hypothesis.