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UrduResearchers detected gamma rays from ultra-fast outflows (UFOs) in several nearby galaxies for the first time, providing a basis for scientists to understand what happened in our own Milky Way galaxy.
Tag: ASTROPHYSICS
Astrophysicists reveal largest-ever suite of universe simulations
Collectively clocking in at nearly 60 trillion particles, a newly released set of cosmological simulations is by far the biggest ever produced.
BICEP3 tightens the bounds on cosmic inflation
A new analysis of the South Pole-based telescope’s cosmic microwave background observations has all but ruled out several popular models of inflation.
Need for Larger Space Telescope Inspires Lightweight Flexible Holographic Lens
Inspired by a concept for discovering exoplanets with a giant space telescope, a team of researchers is developing holographic lenses that render visible and infrared starlight into either a focused image or a spectrum.
PPPL scientists win highly competitive awards to bring cosmic processes to Earth
The two awards will enable physicists to use lasers to reproduce high-energy astrophysical plasmas under extreme conditions to probe processes such as space storms that can disrupt cell phone service.
Three PPPL scientists win competitive awards to conduct frontier plasma science work
World-class expertise in the study of plasma — the hot, charged state of matter composed of free electrons and atomic nuclei, or ions, that makes up 99 percent of the visible universe — has won frontier science projects for three physicists at PPPL.
How to catch a perfect wave: Scientists take a closer look inside the perfect fluid
Scientists have reported new clues to solving a cosmic conundrum: How the quark-gluon plasma – nature’s perfect fluid – evolved into the building blocks of matter during the birth of the early universe.
Cosmic Rays May Be Key to Understanding Galactic Dynamics
While moving around within the gas in the interstellar medium, cosmic rays kickstart the background protons, which causes a collective plasma wave movement akin to ripples on a lake. The big question is how cosmic rays deposit their momentum into the background plasma. In Physics of Plasmas, plasma astrophysicists review recent developments within the field of studying the streaming instability triggered by cosmic rays, which likely have more impacts on galactic dynamics and the star formation cycle than previously known.
Scientists Observe Gas Re-accretion in Dying Galaxies for the First Time
A new study from scientists using the Atacama Large Millimeter/submillimeter Array (ALMA) suggests that previously displaced gases can re-accrete onto galaxies, potentially slowing down the process of galaxy death caused by ram pressure stripping, and creating unique structures more resistant to its effects.
First Detection of Light From Behind a Black Hole
Watching X-rays flung out into the universe by the supermassive black hole at the center of a galaxy 800 million light-years away, Stanford University astrophysicist Dan Wilkins noticed an intriguing pattern.
Dalian Coherent Light Source reveals strong isotope effects in photodissociation of water isotopolog
Recently, a research group led by Prof. YUAN Kaijun and Prof. YANG Xueming from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences revealed strong isotope effects in photodissociation of the water isotopologue (HOD) using the…
Antimatter From Laser Pincers
In the depths of space, there are celestial bodies where extreme conditions prevail: Rapidly rotating neutron stars generate super-strong magnetic fields.
Spotted: An exoplanet with the potential to form moons
Cambridge, MA ¬- Astronomers at the Center for Astrophysics | Harvard & Smithsonian have helped detect the clear presence of a moon-forming region around an exoplanet — a planet outside of our Solar System. The new observations, published Thursday in…
Mars: Scientists determine crustal thickness
Based on the analysis of marsquakes recorded by NASA’s InSight mission, the structure of Mars’s crust has now been determined in absolute numbers for the first time. Beneath the InSight landing site, the crust is either approximately 20 or 39…
A large tidal stream observed in the Sombrero galaxy
According to the latest cosmological models, large spiral galaxies such as the Milky Way grew by absorbing smaller galaxies, by a sort of galactic cannibalism. Evidence for this is given by very large structures, the tidal stellar streams, which are…
The origin of bifurcated current sheets explained
A Korean research team has identified the origin of bifurcated current sheets, considered one of the most unsolved mysteries in the Earth’s magnetosphere and in magnetized plasma physics. A POSTECH joint research team led by Professor Gunsu S. Yun of…
From the Sun to the stars
A journey of exoplanet discovery begins as Penn State’s NEID spectrometer starts its scientific mission
Tail without a comet: the dusty remains of Comet ATLAS
A serendipitous flythrough of the tail of a disintegrated comet has offered scientists a unique opportunity to study these remarkable structures, in new research presented today at the National Astronomy Meeting 2021. Comet ATLAS fragmented just before its closest approach…
Cosmic rays help supernovae explosions pack a bigger punch
The final stage of cataclysmic explosions of dying massive stars, called supernovae, could pack an up to six times bigger punch on the surrounding interstellar gas with the help of cosmic rays, according to a new study led by researchers…
RAS launches new multi-disciplinary journal
The Royal Astronomical Society (RAS) is pleased to announce the launch of its first new journal in almost 100 years. Tentatively titled RAS Techniques and Instruments , it will cover topics in astronomy and geophysics ranging from instrumentation, data science,…
Researchers reveal cause of Jupiter’s x-ray aurorae
An international research team led by YAO Zhonghua from the Institute of Geology and Geophysics of the Chinese Academy of Sciences (IGGCAS) has explained the cause of Jupiter’s X-ray aurorae, a mystery that has puzzled scientists for 40 years. The…
Galactic fireworks: New ESO images reveal stunning features of nearby galaxies
A team of astronomers has released new observations of nearby galaxies that resemble colourful cosmic fireworks. The images, obtained with the European Southern Observatory’s Very Large Telescope (ESO’s VLT), show different components of the galaxies in distinct colours, allowing astronomers…
National Astronomy Meeting 2021: Media invitation
Around 850 astronomers and space scientists will gather online from 19 – 23 July, for the Royal Astronomical Society National Astronomy Meeting 2021 (NAM 2021) hosted by the University of Bath. Postponed in 2020 due to the Covid-19 pandemic, the…
Physicists describe sun’s electric field
As the Parker Solar Probe ventures closer to the sun, we are learning new things about our home star. In a new study, physicists led by the University of Iowa report the first definitive measurements of the sun’s electric field,…
A star in a distant galaxy blew up in a powerful explosion, solving an astronomical mystery
Giant explosion in space illuminates thousand-year mystery
CUR Physics and Astronomy Division Announces 2021 Outstanding Research Mentor Awardee
The Physics and Astronomy Division of the Council on Undergraduate Research announces the 2021 recipient of its Outstanding Research Mentor award: Thomas Pannuti (Morehead State University).
Galactic gamma ray bursts predicted last year show up right on schedule
Sherlock Holmes story gives clue to successful prediction of bursts from nearby magnetar
SwRI’s Bolton receives NSS Space Pioneer Award
National Space Society recognizes accomplishments in opening the space frontier
Danish student solves how the Universe is reflected near black holes
In the vicinity of black holes, space is so warped that even light rays may curve around them several times. This phenomenon may enable us to see multiple versions of the same thing. While this has been known for decades,…
Scientists solve 40-year mystery over Jupiter’s X-ray aurora
A research team co-led by UCL has solved a decades-old mystery as to how Jupiter produces a spectacular burst of X-rays every few minutes.
New radio receiver opens wider window to radio universe
Researchers have used the latest wireless technology to develop a new radio receiver for astronomy. The receiver is capable of capturing radio waves at frequencies over a range several times wider than conventional ones, and can detect radio waves emitted…
LHAASO’s measurement of Crab Nebula brightness yields new UHE gamma-ray standard
The Large High Altitude Air Shower Observatory (LHAASO), one of China’s key national science and technology infrastructure facilities, has accurately measured the brightness over 3.5 orders of magnitude of the standard candle in high-energy astronomy, thus calibrating a new standard…
Small amount of lithium production in classical nova
A new study of lithium production in a classical nova found a production rate of only a couple of percent that seen in other examples. This shows that there is a large diversity within classical novae and implies that nova…
New type of massive explosion explains mystery star
‘Magneto-rotational hypernova’ soon after the Big Bang fuelled high levels of uranium, zinc in ancient stellar oddity
New clues to why there’s so little antimatter in the universe
Radioactive molecules are sensitive to subtle nuclear phenomena and might help physicists probe the violation of the most fundamental symmetries of nature.
Satellite galaxies can carry on forming stars when they pass close to their parent galaxies
Historically most scientists thought that once a satellite galaxy has passed close by its higher mass parent galaxy its star formation would stop because the larger galaxy would remove the gas from it, leaving it shorn of the material it…
Kepler telescope glimpses population of free-floating planets
Tantalising evidence has been uncovered for a mysterious population of “free-floating” planets, planets that may be alone in deep space, unbound to any host star. The results include four new discoveries that are consistent with planets of similar masses to…
Astronomers discover an oversized black hole population in the star cluster Palomar 5
“The number of black holes is roughly three times larger than expected from the number of stars in the cluster, and it means that more than 20% of the total cluster mass is made up of black holes. They each…
Scientists propose source of unexplained solar jets
Nothing 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.
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