Galaxies
Canberra astronomer becomes first Australian to win major US science award in 133 years  PHYS.ORG · 10 hours
Lisa Kewley has transformed our understanding of the early years of the Universe, the development of galaxies, and what happens... more
Wandering Massive Black Holes Detected in Nearby Dwarf Galaxies  SCI-NEWS.COM · 1 day
Astronomers using NSF’s Karl G. Jansky Very Large Array (VLA) at the National Radio Astronomy Observatory have observed... more
Astrophysicists find massive black holes wandering around dwarf galaxies  PHYS.ORG · 1 day
A new search led by Montana State University has revealed more than a dozen massive black holes in dwarf galaxies that were previously considered too small to host them, and... more
Global Gaia campaign reveals secrets of stellar pair  PHYS.ORG · 2 days
A 500-day global observation campaign spearheaded more than three years ago by ESA's galaxy-mapping powerhouse Gaia has provided unprecedented insights into the binary system of stars that caused an unusual brightening of... more
Global Gaia campaign reveals secrets of stellar pair  ESA · 2 days
A 500-day global observation campaign spearheaded more than three years ago by ESA’s galaxy-mapping powerhouse Gaia has provided unprecedented insights... more
First results from the Dark Energy Survey  PHYS.ORG · 3 days
The Dark Energy Survey (DES) program uses the patterns of cosmic structure as seen in the spatial distribution of hundreds of millions of galaxies to reveal the nature of "dark energy," the source of... more
Hubble Views Face-On Barred Spiral Galaxy  SCI-NEWS.COM · 3 days
The NASA/ESA Hubble Space Telescope has imaged a beautiful spiral galaxy called NGC 1022. NGC 1022 was discovered by the German-born British astronomer William... more
TESS Dates an Ancient Collision with Our Galaxy  ASTRO WATCH · 4 days
A single bright star in the constellation of Indus, visible from the southern hemisphere, has revealed new insights on an... more
Image: Hubble views galaxy from famous catalog  PHYS.ORG · 6 days
This bright, somewhat blob-like object—seen in this image taken by the NASA/ESA Hubble Space Telescope—is a galaxy named NGC 1803. It is about 200 million light-years away, in the southern constellation of Pictor (the... more
XMM-Newton discovers scorching gas in Milky Way's halo  PHYS.ORG · 6 days
ESA's XMM-Newton has discovered that gas lurking within the Milky Way's halo reaches far hotter temperatures than previously thought and has a different chemical make-up than predicted, challenging our understanding of our... more
XMM-Newton discovers scorching gas in Milky Way’s halo  ESA · 7 days
ESA’s XMM-Newton has discovered that gas lurking within the Milky Way’s halo reaches far hotter temperatures than previously thought and... more
Stellar Heavy Metals Can Trace History of Galaxies  ASTRO WATCH · 1 week
Astronomers have cataloged signs of 9 heavy metals in the infrared light from supergiant and giant stars. New observations based... more
When the milky way collided with dwarf galaxy gaia-enceladus  SCIENCE DAILY · 1 week
A single star has provided information about the collision of the Milky Way with the dwarf galaxy Gaia-Enceladus. The event likely took place approximately 11.5 billion years ago. more
Astronomers discover class of strange objects near our galaxy's enormous black hole  SCIENCE DAILY · 1 week
Astronomers have discovered a new class of bizarre objects at the center of our galaxy, not far from the supermassive black hole called Sagittarius... more
Astronomers discover class of strange objects near our galaxy's enormous black hole  PHYS.ORG · 1 week
Astronomers from UCLA's Galactic Center Orbits Initiative have discovered a new class of bizarre objects at the center of our galaxy, not far from... more
Hot gas feeds spiral arms of the Milky Way  PHYS.ORG · 1 week
An international research team, with significant participation of astronomers from the Max Planck Institute for Astronomy (MPIA), has gained important insights into the origin of the material in the spiral... more
Galactic gamma-ray sources reveal birthplaces of high-energy particles  PHYS.ORG · 1 week
Nine sources of extremely high-energy gamma rays comprise a new catalog compiled by researchers with the High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory. All produce gamma rays with energies over 56 trillion electron... more
Galactic gamma-ray sources reveal birthplaces of high-energy particles  nanowerk · 1 week
Nine sources of extremely high-energy gamma rays comprise a new catalog compiled by researchers. All produce gamma rays with energies over 56 trillion electron volts (TeV) and three emit gamma rays extending... more
Galactic gamma-ray sources reveal birthplaces of high-energy particles  SCIENCE DAILY · 1 week
Nine sources of extremely high-energy gamma rays comprise a new catalog compiled by researchers with the High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory. All produce gamma rays with energies over 56 trillion electron... more
TESS dates an ancient collision with our galaxy  nanowerk · 1 week
A single bright star in the constellation of Indus, visible from the southern hemisphere, has revealed new insights on an ancient collision that our galaxy the Milky Way underwent with another smaller... more
Scientists Find 7-Billion-Year-Old Stardust in Murchison Meteorite  SCI-NEWS.COM · 1 week
A team of researchers from the United States, Switzerland and Australia has found 4.6 to 7-billion-year-old presolar grains of silicon carbide (SiC)... more
VLT Spots Two Interacting Galaxies  SCI-NEWS.COM · 1 week
Astronomers using ESO’s Very Large Telescope have captured a striking view of two interacting galaxies NGC 470 and NGC 474. This pair of interacting galaxies lies... more
TESS dates an ancient collision with our galaxy  SCIENCE DAILY · 1 week
A single bright star in the constellation of Indus, visible from the southern hemisphere, has revealed new insights on an ancient collision that our galaxy the Milky Way underwent with another smaller... more
TESS dates an ancient collision with our galaxy  PHYS.ORG · 1 week
A single bright star in the constellation of Indus, visible from the southern hemisphere, has revealed new insights on an ancient collision that our galaxy the Milky Way underwent with another smaller... more
Hubble Space Telescope Observes NGC 1803  SCI-NEWS.COM · 1 week
The NASA/ESA Hubble Space Telescope has taken a beautiful picture of a spiral galaxy called NGC 1803. NGC 1803 lies approximately 200 million light-years... more
Oxygen line opens new perspective on the far universe  PHYS.ORG · 1 week
A team of astronomers of Leiden University and the University of Texas (Austin, United States) has discovered a new way to map distant galaxies. They did so by observing the... more
Virgin Galactic continues work on fleet of SpaceShipTwo vehicles  SPACE NEWS · 1 week
Virgin Galactic is making progress in the development of its next SpaceShipTwo suborbital spaceplane, although the company is... more
New Map of Milky Way Reveals Giant Wave of Stellar Nurseries  ASTRO WATCH · 2 weeks
Astronomers at Harvard University have discovered a monolithic, wave-shaped gaseous structure - the largest... more
Hubble Uses Quadruple-Image Gravitational Lenses to Capture Small-Scale Clumps of Dark Matter  SCI-NEWS.COM · 2 weeks
According to the widely-accepted ‘cold dark matter’ theory, all galaxies are embedded within clouds of dark matter. Dark matter itself consists of slow-moving particles... more
First sighting of hot gas sloshing in galaxy cluster  PHYS.ORG · 2 weeks
ESA's XMM-Newton X-ray observatory has spied hot gas sloshing around within a galaxy cluster—a never-before-seen behaviour that may be driven by turbulent merger events. more
A Fast Radio Burst Tracked Down to a Nearby Galaxy  ASTRO WATCH · 2 weeks
Astronomers in Europe, working with members of Canada's CHIME Fast Radio Burst collaboration, have pinpointed the... more
Simulation of dwarf galaxy reveals different routes for strontium enrichment  PHYS.ORG · 2 weeks
Simulations of a dwarf galaxy by RIKEN astrophysicists have revealed the various processes by which moderately heavy metals such as strontium are birthed. They have found that at... more
X-ray and optical view of the Perseus galaxy cluster  ESA · 2 weeks
Image: This image shows the Perseus galaxy cluster – one of the most massive known objects in the... more
X-ray and optical view of the Coma galaxy cluster  ESA · 2 weeks
Image: This image shows the bright, nearby, and massive Coma galaxy cluster in X-ray and optical light, as seen... more
First sighting of hot gas sloshing in galaxy cluster  ESA · 2 weeks
ESA’s XMM-Newton X-ray observatory has spied hot gas sloshing around within a galaxy cluster – a never-before-seen behaviour... more
Repeating Fast Radio Burst Localized to Massive Spiral Galaxy  SCI-NEWS.COM · 2 weeks
Astronomers have pinpointed the source galaxy of the fast radio burst known as FRB 180916.J0158+65 (FRB 180916 for... more
Astronomers Find 9,000-Light-Year-Long Wave-Shaped Structure in Milky Way  SCI-NEWS.COM · 2 weeks
Using data from ESA’s Gaia star-mapping spacecraft, a team of astronomers from Austria and the United States has discovered a... more
Stellar heavy metals can trace history of galaxies  PHYS.ORG · 2 weeks
Astronomers have cataloged signs of nine heavy metals in the infrared light from supergiant and giant stars. New observations based on this catalog will help researchers to understand how events like binary... more
Hubble detects smallest known dark matter clumps  PHYS.ORG · 2 weeks
When searching for dark matter, astronomers must go on a sort of "ghost hunt." That's because dark matter is an invisible substance that cannot be seen directly. Yet it makes up the bulk of... more
Goldilocks stars are best places to look for life  PHYS.ORG · 2 weeks
To date astronomers have discovered over 4,000 planets orbiting other stars. Statistically, there should be over 100 billion planets in our Milky Way galaxy. They come in a wide range... more
Chinese launch firm Galactic Energy raises $21.5 million  SPACE NEWS · 2 weeks
Chinese private space launch firm Galactic Energy has raised $21.5 million for the development and launch of new rockets. SpaceNews.com more
Stellar heavy metals can trace history of galaxies  nanowerk · 2 weeks
Astronomers have cataloged signs of 9 heavy metals in the infrared light from supergiant and giant stars. more
Hubble Telescope Surveys Gigantic Galaxy  ASTRO WATCH · 2 weeks
To kickstart the 30th anniversary year of the NASA/ESA Hubble Space Telescope, Hubble has imaged a majestic spiral galaxy. Galaxy UGC 2885 may be the largest... more
SOFIA Maps Most Energetic Portion of Milky Way  SCI-NEWS.COM · 2 weeks
Astronomers using the Faint Object Infrared Camera for the SOFIA Telescope (FORCAST) instrument onboard NASA’s Stratospheric Observatory for Infrared Astronomy... more
Cosmic Rays Are Starting to Tear Apart This Milky Way Satellite Galaxy  LIVE SCIENCE · 2 weeks
Researchers recently released simulations of the Large Magellanic Cloud — a satellite galaxy of the Milky Way — and found that cosmic rays from... more
Virgin Galactic's next spaceship reaches build milestone  PHYS.ORG · 2 weeks
Virgin Galactic's next passenger spaceship has reached a major construction milestone, the company said Wednesday. more
Cosmic bubbles reveal the first stars  SCIENCE DAILY · 2 weeks
Astronomers have identified several overlapping bubbles of hydrogen gas ionized by the stars in early galaxies, a mere 680 million years after the Big Bang. This is the earliest direct evidence from the period when the... more
The Milky Way's impending galactic collision is already birthing new stars  PHYS.ORG · 2 weeks
The outskirts of the Milky Way are home to the galaxy's oldest stars. But astronomers have spotted something unexpected in this celestial retirement community: a flock... more
New map of Milky Way reveals giant wave of stellar nurseries  PHYS.ORG · 2 weeks
Astronomers at Harvard University have discovered a monolithic, wave-shaped gaseous structure—the largest ever seen in our galaxy—made up of interconnected stellar nurseries. Dubbed the "Radcliffe wave"... more
Mysterious 'Wave' of Star-Forming Gas May Be the Largest Structure in the Galaxy  LIVE SCIENCE · 2 weeks
A newly discovered suburb of baby-booming stars, known as the Radcliffe Wave, may be the largest structure in the Milky Way. more
Binary star V Sagittae will explode as a very bright 'nova' by century's end  SCIENCE DAILY · 2 weeks
The faint star V Sagittae, V Sge, in the constellation Sagitta, is barely visible, even in mid-sized telescopes. However, around... more
Binary star V Sagittae to explode as very bright nova by century's end  PHYS.ORG · 2 weeks
Currently, the faint star V Sagittae, V Sge, in the constellation Sagitta, is barely visible, even in mid-sized telescopes. However, around the... more
Hubble surveys gigantic galaxy  ESA · 2 weeks
Image: To kickstart the 30th anniversary year of the NASA/ESA Hubble Space Telescope, Hubble has imaged a majestic spiral galaxy. Galaxy UGC 2885 may be the largest known... more
Astronomers find wandering massive black holes in dwarf galaxies  nanowerk · 2 weeks
Astronomers seeking to learn about the mechanisms that formed massive black holes in the early history of the Universe have gained important new clues with the discovery of 13 such... more
Fast radio burst observations deepen astronomical mystery  nanowerk · 2 weeks
Astronomers have pinpointed the origin of a repeating Fast Radio Burst to a nearby spiral galaxy, challenging theories on the unknown source of these pulses. more
In a nearby galaxy, a fast radio burst unravels more questions than answers  PHYS.ORG · 2 weeks
For more than a decade, astronomers across the globe have wrestled with the perplexities of fast radio bursts—intense, unexplained cosmic flashes of... more
Astronomers spot distant galaxy group driving ancient cosmic makeover  SCIENCE DAILY · 2 weeks
Astronomers have found the farthest galaxy group identified to date. Called EGS77, the trio of galaxies dates to a time when the universe was only 680 million years old, or... more
A fast radio burst tracked down to a nearby galaxy  SCIENCE DAILY · 2 weeks
Astronomers have pinpointed the location of a repeating fast radio burst. The breakthrough is only the second time that scientists have determined the precise location of a repeating... more
NASA's Hubble surveys gigantic galaxy  SCIENCE DAILY · 2 weeks
This majestic spiral galaxy might earn the nickname the 'Godzilla galaxy' because it may be the largest known in the local universe. The galaxy, UGC 2885, is 2.5 times wider than our Milky Way and contains 10 times... more
Astronomers find wandering massive black holes in dwarf galaxies  SCIENCE DAILY · 2 weeks
Studies with the VLA indicate that roughly half of the massive black holes in dwarf galaxies are not in the centers of those galaxies. This gives astronomers new insights into... more
Image: Hubble sights galaxy's celestial sequins  PHYS.ORG · 2 weeks
This smattering of celestial sequins is a spiral galaxy named NGC 4455, located in the northern constellation of Coma Berenices (Berenice's Hair). This might sound like an odd name for a constellation—and in fact it is... more
Expert discusses clearest image known of a cluster of galaxies from 10 billion years ago  PHYS.ORG · 2 weeks
Using high-powered telescopes including NASA's Hubble Space Telescope, scientists from Canada, the United States and Denmark have captured... more
Astronomers detect first stars 'bubbling out' from the cosmic Dark Ages  PHYS.ORG · 2 weeks
Astronomers using the Mayall telescope at Kitt Peak National Observatory, a program of NSF's National Optical-Infrared Astronomy Research Laboratory, have identified several overlapping bubbles of hydrogen... more
NASA's Hubble surveys gigantic galaxy  PHYS.ORG · 2 weeks
Galaxies are like snowflakes. Though the universe contains innumerable galaxies flung across time and space, no two ever look alike. One of the most photogenic is the huge spiral galaxy UGC 2885, located 232 million light-years away in... more
Flying observatory maps the Milky Way  PHYS.ORG · 2 weeks
A new panoramic image based on data captured by NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) shows the bustling center of our galaxy like it has never been seen before. more
The turbulent life of two supermassive black holes caught in a galaxy crash  PHYS.ORG · 2 weeks
An international team of astronomers used the Atacama Large Millimeter/submillimeter Array (ALMA) to create the most detailed image yet of the gas... more
Astronomers spot distant galaxy group driving ancient cosmic makeover  PHYS.ORG · 2 weeks
An international team of astronomers funded in part by NASA has found the farthest galaxy group identified to date. Called EGS77, the trio of galaxies dates to a time when... more
Hubble Snaps Stunning Image of NGC 2770  SCI-NEWS.COM · 2 weeks
The NASA/ESA Hubble Space Telescope has captured an amazing photo of a spiral galaxy called NGC 2770. NGC 2770 is located approximately... more
Astronomers find wandering massive black holes in dwarf galaxies  PHYS.ORG · 2 weeks
Astronomers seeking to learn about the mechanisms that formed massive black holes in the early history of the Universe have gained important new clues with the discovery of 13 such... more
Enormous Ring of Neutral Hydrogen Found around Distant Massive Galaxy  SCI-NEWS.COM · 3 weeks
Astronomers using the Giant Metrewave Radio Telescope (GMRT) have discovered an extremely large off-centered ring of... more
GMRT discovers a gigantic ring of hydrogen gas around a distant galaxy  PHYS.ORG · 3 weeks
A team of astronomers at the National Centre for Radio Astrophysics (NCRA) in Pune, India have discovered a mysterious ring of hydrogen gas around... more
Astronomers Capture Galactic Fireworks in Nearby Spiral Galaxy  SCI-NEWS.COM · 3 weeks
This impressive fireworks display, which involves a supermassive black hole, enormous shock waves and vast reservoirs of gas, is taking... more
Blazar variability  PHYS.ORG · 3 weeks
Active galactic nuclei (AGN) are supermassive black holes at the centers of galaxies that are accreting material. These AGN emit jets of charged particles that move at speeds close to that of light, transporting huge amounts of energy away from... more
Image: Hubble views a galaxy with an active center  PHYS.ORG · 3 weeks
This swirling mass of celestial gas, dust and stars is a moderately luminous spiral galaxy named ESO 021-G004, located just under 130 million light-years away. more
Giant magnetic ropes seen in Whale Galaxy's halo  PHYS.ORG · 3 weeks
Using the National Science Foundation's Karl G. Jansky Very Large Array radio telescope, a team of astronomers has captured for the first time an image of large-scale, coherent, magnetic fields in the... more
Hubble Scores Stunning Close-Up View of NGC 4455  SCI-NEWS.COM · 3 weeks
The NASA/ESA Hubble Space Telescope has snapped a beautiful photo of a barred spiral galaxy called NGC 4455. NGC 4455... more
New Space Image Reveals Cosmic 'Candy Cane'  ASTRO WATCH · 4 weeks
Just in time for the holidays, a structure resembling a candy cane has emerged as the centerpiece of a new, colorful composite... more
New Clues on Dark Matter from the Darkest Galaxies  ASTRO WATCH · 4 weeks
They are called low-surface-brightness galaxies and it is thanks to them that important confirmations and new information have... more
MeerKAT Radio Telescope Spots Thousands of Star-Forming Galaxies  SCI-NEWS.COM · 4 weeks
A new radio image from the MeerKAT telescope at the South African Radio Astronomy Observatory in Cape Town, South Africa,... more
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