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1,000+ results for "Milky Way"

The first neutrino image of our galaxy

IceCube researchers have produced an image of the Milky Way using neutrinos for the first time, suggesting that cosmic ray interactions are more intense in the galaxy's center than previously thought. This achievement is made possible by advancements in Machine Learning, enabling deeper analysis of the data.

SourceStockholm University·JournalScience·DateJun 29, 2023

Detection of an echo emitted by our Galaxy's black hole 200 years ago

An international team of scientists has discovered an echo emitted by the supermassive black hole at the centre of the Milky Way, which emerged from a long period of dormancy 200 years ago. The black hole, four million times more massive than the Sun, gobbled up cosmic objects before re-entering quiescence.

SourceCNRS·JournalNature·TypeObservational study·DateJun 21, 2023

Mysterious dashes revealed in Milky Way’s center

A new population of shorter, horizontally-oriented filaments has been discovered near Sagittarius A*, the galaxy's central supermassive black hole. These filaments are thought to be tied to the outflow of hot material from the black hole, providing insights into its spin and accretion disk orientation.

SourceNorthwestern University·JournalThe Astrophysical Journal Letters·TypeObservational study·DateJun 2, 2023

Quest for alien signals in the heart of the Milky Way takes off

A team led by Akshay Suresh is searching for periodic signals in the Milky Way's core, which could be a strategic site for an extraterrestrial beacon. The Breakthrough Listen Investigation for Periodic Spectral Signals (BLIPSS) uses novel methodology to sift through data and identify potential evidence of advanced life forms.

SourceSETI Institute·JournalThe Astronomical Journal·DateMay 30, 2023

Astronomers witness star devouring planet: possible preview of the ultimate fate of Earth

For most of its life, a Sun-like star fuses hydrogen into helium in its hot core, causing it to expand and engulf nearby planets. The first direct evidence of this event was observed using the Gemini South Adaptive Optics Imager, revealing a long-lasting outburst with ejected material containing about 33 Earth masses of hydrogen.

SourceAssociation of Universities for Research in Astronomy (AURA)·JournalNature·TypeObservational study·DateMay 3, 2023

Got milky spots?

A study published in the Journal of Experimental Medicine reveals a unique subset of fibroblastic reticular cells in omental milky spots crucial for immune cell recruitment to prevent sepsis. These cells regulate the display of CXCL12, recruiting lymphocytes to sites of inflammation.

SourceOsaka University·JournalJournal of Experimental Medicine·TypeExperimental study·DateMar 22, 2023

Footprints of galactic immigration uncovered in Andromeda galaxy

Researchers used the Dark Energy Spectroscopic Instrument to study the motions of nearly 7500 stars in the inner halo of the Andromeda Galaxy. They found telltale patterns that revealed how these stars began their lives as part of another galaxy, shedding light on galactic immigration events.

SourceAssociation of Universities for Research in Astronomy (AURA)·JournalThe Astrophysical Journal·TypeData/statistical analysis·DateFeb 8, 2023

Cosmological enigma of Milky Way’s satellite galaxies solved

Researchers used new data from the European Space Agency's GAIA space observatory to project the orbits of satellite galaxies into the past and future, revealing the plane form and dissolve in a few hundred million years. The findings remove one of the main objections to the validity of the standard model of cosmology.

SourceDurham University·JournalNature Astronomy·TypeComputational simulation/modeling·DateDec 19, 2022

FAST reveals unprecedented details of the Milky Way

The FAST telescope has detected unprecedented detail about the distribution of neutral hydrogen gas in the Milky Way, revealing fine structures across 88 square degrees. The team also found evidence for magnetic field reversals along spiral arms and confirmed shell-type supernova remnants.

SourceScience China Press·JournalScience China Physics Mechanics and Astronomy·DateDec 10, 2022

WALLABY builds an intergalactic map in the outback

The WALLABY survey has mapped over 600 galaxies, including many new discoveries, and will catalog over a quarter of a million galaxies to measure dark-matter distribution and galaxy evolution. The radio telescope's ability to peer through stars and dust in the Milky Way enables scientists to study the universe at unprecedented scales.

SourceInternational Centre for Radio Astronomy Research·JournalPublications of the Astronomical Society of Australia·TypeSurvey·DateNov 15, 2022

Astronomers discover closest black hole to earth

Astronomers have discovered the closest-known black hole to Earth, a dormant stellar-mass black hole located about 1600 light-years away in the constellation Ophiuchus. This discovery was made possible by precise observations of the motion of the black hole's companion star using the Gemini Multi-Object Spectrograph instrument.

SourceAssociation of Universities for Research in Astronomy (AURA)·JournalMonthly Notices of the Royal Astronomical Society·TypeObservational study·DateNov 4, 2022

Milky Way’s graveyard of dead stars found

A new study has created the first map of the Milky Way's ancient dead stars, which reveals a 'galactic underworld' stretching three times the height of the galaxy. The map shows that almost a third of objects have been flung out from the galaxy, with neutron stars and black holes formed when massive stars collapse.

SourceUniversity of Sydney·JournalMonthly Notices of the Royal Astronomical Society·TypeComputational simulation/modeling·DateSep 29, 2022

Researchers use gamma rays to detect small neighboring galaxy filled with dark matter

A team of researchers has detected a small satellite galaxy of the Milky Way filled with dark matter using gamma-ray emissions. The discovery was initially thought to be indicative of dark matter annihilation, but further analysis reveals that millisecond pulsars are more likely to be the source of the emission.

Movement of the solar system through the Milky Way’s galactic spiral arms helped form Earth’s first continents

A new study suggests that the solar system's transit through the four primary spiral arms of the Milky Way galaxy may have seeded enhanced production of continental crust on early Earth. The researchers found a correlation between periods of increased crust generation and the solar system's movement into spiral arms, possibly due to co...

SourceGeological Society of America·JournalGeology·DateAug 24, 2022

Building blocks for RNA-based life abound at center of our galaxy

A team of researchers has discovered a wide range of nitriles, key molecular precursors for life, in the interstellar molecular cloud G+0.693-0.027 near the Milky Way center. The study provides important insights into the chemical ingredients available in the nebula that give rise to our planetary system.

SourceFrontiers·JournalFrontiers in Astronomy and Space Sciences·TypeObservational study·DateJul 8, 2022

First image of the beastly black hole at the heart of our galaxy

The Event Horizon Telescope captured the first image of Sagittarius A*, a hot and dense black hole surrounded by superheated gas, improving our understanding of black holes. The Frontera supercomputer supported this achievement through innovative data-driven astronomy.

SourceUniversity of Texas at Austin, Texas Advanced Computing Center·JournalThe Astrophysical Journal Letters·TypeComputational simulation/modeling·DateMay 12, 2022

Illinois astronomers help capture first image of Milky Way's black hole

A team of University of Illinois researchers, led by Charles Gammie, has captured the first direct visual evidence of a supermassive black hole at the center of the Milky Way. The image reveals a dark central region surrounded by a bright ringlike structure, providing valuable clues about the workings of such giants.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalThe Astrophysical Journal Letters·TypeComputational simulation/modeling·DateMay 12, 2022

Astronomers snap first-ever image of supermassive black hole Sagitarrius A*

A team of astronomers, including those from MIT's Haystack Observatory, has captured the light around our own supermassive black hole, revealing for the first time an image of Sagitarrius A*, the black hole at the center of the Milky Way galaxy. The resulting image reveals SgrA* in a glowing, donut-shaped ring of light.

SourceMassachusetts Institute of Technology·JournalThe Astrophysical Journal Letters·DateMay 12, 2022

Researchers map the movement of white dwarfs of the Milky Way

A recent study from Lund University reveals new information about the movement patterns of white dwarfs in the Milky Way. The researchers mapped the three-dimensional velocity distribution for the largest catalogue of white dwarfs to date, providing a detailed picture of their velocity structure.

SourceLund University·JournalMonthly Notices of the Royal Astronomical Society·DateMar 23, 2022

What ingredients went into the galactic blender to create the Milky Way?

Researchers analyzed individual stars to identify components of the Milky Way, finding that it consumed smaller galaxies. The study used advanced spectrographic techniques to measure elemental abundances, providing early insights into the galaxy's formation and evolution.

SourceARC Centre of Excellence for All Sky Astrophysics in 3D (ASTRO 3D)·JournalMonthly Notices of the Royal Astronomical Society·TypeObservational study·DateFeb 21, 2022