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Search results for “Astrophysics”

1,000+ results for "Astrophysics"

A stellar envelope near the black hole Sgr A* contains water

Astronomers have discovered water molecules in the envelope of star IRS 3, located near the supermassive black hole Sgr A*. The star's enormous envelope, fueled by rapid mass loss, has allowed water to thrive in its vicinity. This finding suggests that Sgr A* is being enriched with fundamental building blocks of life.

SourceUniversity of Cologne·JournalAstronomy and Astrophysics·TypeObservational study·DateAug 11, 2026

46th COSPAR Scientific Assembly concludes in Florence, advancing global space research collaboration

The 46th COSPAR Scientific Assembly brought together over 3,000 participants to exchange the latest results in space research and strengthen international scientific collaboration. Key highlights included a Space Agency Leaders Roundtable, Humanity's Cross-Disciplinary Exploration panel, and the first-ever Dark and Quiet Skies event.

Bringing new eyes to existing telescopes

Two university-led projects receive $2.96 million to develop next-generation instruments for mid-sized ground-based optical and near-infrared telescopes. The grants aim to improve sensitivity and expand access to key wavelengths, enabling observations of extremely faint astronomical objects.

The Kavli Prize in Astrophysics 2026 laureates

The Kavli Prize in Astrophysics 2026 is awarded to Vasily Belokurov, Amina Helmi, and Rodrigo Ibata for their discovery of past mergers that prove the Milky Way galaxy was built through hierarchical accretion. This breakthrough reveals how our universe is formed and challenges assumptions on galaxy formation.

Understanding extreme states of matter faster

Researchers have developed a new procedure to speed up elaborate computer simulations analyzing matter under extreme conditions. The method, which uses mathematical transformation into imaginary time, enables faster evaluation of X-ray scattering experiments, improving fields like fusion research and laboratory astrophysics.

SourceHelmholtz-Zentrum Dresden-Rossendorf·Journalnpj Computational Materials·TypeComputational simulation/modeling·DateMay 26, 2026

The origin of the mysterious X-rays from Gamma Cas identified

Astronomers from the University of Liège have solved a 50-year-old stellar mystery by attributing the X-rays emitted by Gamma Cas to a magnetic white dwarf orbiting the star. The study used high-energy astrophysics instrumentation and revealed that the X-rays are associated with the compact companion, not the massive Be star itself.

SourceUniversity of Liège·JournalAstronomy and Astrophysics·DateMar 24, 2026

Dark matter makes a comeback in galactic glow mystery

Researchers revive dark matter as a serious contender for explaining the Milky Way's central glow, proposing a more complex and nonspherical dark matter structure. Advanced simulations reveal that dark matter may still be the best explanation for the excess of high-energy radiation observed by NASA's Fermi Gamma-ray Space Telescope.

SourceThe Hebrew University of Jerusalem·JournalPhysical Review Letters·TypeComputational simulation/modeling·DateOct 20, 2025

Mapping the universe just got easier

The new emulator Effort.jl allows researchers to analyze complex data sets faster and more efficiently than ever before. It uses state-of-the-art numerical methods and clever preprocessing strategies to achieve exceptional computational performance, making it possible to explore cosmic scenarios without waiting hours for each simulation.

SourceUniversity of Waterloo·JournalJournal of Cosmology and Astroparticle Physics·TypeComputational simulation/modeling·DateSep 30, 2025

Reconsidering the cosmological constant

Researchers Josh Frieman and Anowar Shajib found that physics-based models for evolving dark energy better explain current data than the standard model. The data suggests that dark energy density has decreased by about 10% over the last several billion years, changing the cosmic expansion history.

Ringing black hole confirms Einstein and Hawking’s predictions

A newly detected black hole merger has provided the clearest evidence yet of how black holes work, confirming fundamental predictions by Albert Einstein and Stephen Hawking. The observations reveal insights into the properties of black holes and the nature of space-time, hinting at how quantum physics and general relativity fit together.

SourceSimons Foundation·JournalPhysical Review Letters·DateSep 10, 2025

Solar Orbiter traces superfast electrons back to Sun

The European Space Agency-led Solar Orbiter mission has split energetic particles into two groups, tracing them back to distinct solar outbursts. Researchers found that one type of particle is connected to intense solar flares and the other to larger coronal mass ejections.

SourceEuropean Space Agency·JournalAstronomy and Astrophysics·TypeObservational study·DateSep 1, 2025

Scientists date the origin of Jupiter by studying the formation of “molten rock raindrops”

Researchers at Nagoya University and the Italian National Institute for Astrophysics have determined how molten rock droplets formed in Jupiter's early days. Their study shows that chondrule characteristics are influenced by the water content of impacting planetesimals, providing a clearer picture of solar system formation.

SourceNagoya University·JournalScientific Reports·TypeComputational simulation/modeling·DateAug 25, 2025

Galactic Rosetta Stone: Study measuring magnetic field near the center of the Milky Way helps to decode the precise astrophysical dynamics at the heart of our galaxy

Researchers measured magnetic field of Sagittarius C, a region in the Central Molecular Zone, to understand interaction between dense clouds, star formation, and strong magnetic field. The study found that the magnetic field wraps around an expanding central bubble of hot, ionized gas created by massive young stars.

SourceUniversity of Chicago·JournalThe Astrophysical Journal·DateAug 12, 2025

Public take the lead in discovery of new exploding star

Kilonova Seekers, a public participation project, has announced its first major discovery - a bright exploding star named GOTO0650. The team collected highly complete dataset on the star through fast response from volunteers, suggesting it's a period bouncer and rare object to find in wide-field imaging surveys.

SourceUniversity of Warwick·JournalAstronomy and Astrophysics·TypeExperimental study·DateJul 1, 2025

The US has a new most powerful laser

The US National Science Foundation-funded ZEUS facility at the University of Michigan has roughly doubled the peak power of any other laser in the country with its first official experiment reaching 2 petawatts. Research at ZEUS will have applications in medicine, national security, materials science and astrophysics.

Astrophysicists explore our galaxy’s magnetic turbulence in unprecedented detail using a new computer model

A new computer model simulates magnetism and turbulence in the interstellar medium, providing unprecedented detail on the Milky Way Galaxy's overall magnetic field. The model also helps understand star formation and the propagation of cosmic rays, offering insights into astrophysical phenomenon.

SourceUniversity of Toronto·JournalNature Astronomy·TypeComputational simulation/modeling·DateMay 13, 2025

SLAC scientists created the most powerful ultrashort electron beam in the world

SLAC researchers develop a laser-based shaping technique to compress billions of electrons into a length less than one micrometer, producing an electron beam with femtosecond-duration and petawatt peak power. This achievement opens up new discoveries in quantum chemistry, astrophysics, and material science.

SourceDOE/SLAC National Accelerator Laboratory·JournalPhysical Review Letters·TypeExperimental study·DateMar 5, 2025

The galactic journey of our solar system

The Solar System passed through the Radcliffe Wave galactic structure approximately 14 million years ago, compressing its heliosphere and increasing interstellar dust influx. This journey may have impacted Earth's climate and left geological traces.

SourceUniversity of Vienna·JournalAstronomy and Astrophysics·DateFeb 25, 2025