Galaxies
Astronomers find further evidence for a population of dark matter deficient dwarf galaxies  nanowerk · 18 hours
Astronomers have found a special population of dwarf galaxies that could mainly consist baryons within radii of up to tens of thousands... more
Image: Hubble spots galaxy's dramatic details  PHYS.ORG · 19 hours
Some of the most dramatic events in the universe occur when certain stars die—and explode catastrophically in the process. more
SN Now: The final installment of SCaN Now  PHYS.ORG · 19 hours
NASA satellites, no matter the destination, have to communicate their data to mission control and scientists on Earth. These missions capture extraordinary data that make communications an essential part of each mission:... more
IRAS 18379–1707 is a metal-poor high-velocity star, observations find  PHYS.ORG · 19 hours
Astronomers have conducted high-resolution spectroscopic observations of IRAS 18379–1707 (or LS 5112), a candidate post-asymptotic giant branch (post-AGB) star in the Milky Way galaxy. Results of the observations provide more... more
Supermassive Black Hole Triggers Star Formation in Multiple Galaxies  SCI-NEWS.COM · 5 days
Enormous black holes usually affect their surroundings through the so-called ‘negative feedback’ — in other words, suppressing the... more
Scientists have found out why photons from other galaxies do not reach Earth  PHYS.ORG · 6 days
An international group of scientists, including Andrey Savelyev, associate professor of the Institute of Physical and Mathematical Sciences and Information Technologies of... more
Unusual X-ray spectral variability observed in NGC 1313 X-1  PHYS.ORG · 6 days
An ultraluminous X-ray source (ULX) in the NGC 1313 galaxy, known as NGC 1313 X-1, showcases an unusual X-ray spectral variability, according to a new study recently conducted by an... more
19 Galaxies Are Apparently Missing Dark Matter. No One Knows Why.  LIVE SCIENCE · 7 days
Nineteen newly discovered dwarf galaxies seem to be missing their dark matter, and physicists aren't sure why. more
Hoag's Object Is a Galaxy Within a Galaxy Within a Galaxy (and Nobody Knows Why)  LIVE SCIENCE · 7 days
Hoag's object, which is a galaxy within a galaxy within a galaxy, has befuddled stargazers since astronomer Arthur... more
Black hole or newborn stars? SOFIA finds galactic puzzle  PHYS.ORG · 1 week
Universities Space Research Association (USRA) today announced that scientists on NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA) found a strange black hole that is changing its galactic surroundings in a... more
Ears all round: World's first acoustic observatory  PHYS.ORG · 1 week
You won't see stars at the Australian Acoustic Observatory but you will "see" a galaxy of sounds from around Australia. more
Image: Hubble detects dynamic galactic duo  PHYS.ORG · 1 week
Some galaxies are closer friends than others. While many live their own separate, solitary lives, others stray a little too close to a near neighbor and take their friendship even deeper. more
Hubble Space Telescope Observes NGC 5468  SCI-NEWS.COM · 1 week
The NASA/ESA Hubble Space Telescope has produced a spectacularly detailed image of a spiral galaxy called NGC 5468. NGC 5468 is a face-on spiral... more
Giant Magnetic Ropes in a Galaxy’s Halo  ASTRO WATCH · 1 week
This image of the "Whale Galaxy" (NGC 4631), made with the National Science Foundation's Karl G. Jansky Very Large Array (VLA), reveals... more
Stellar Black Hole in Our Galaxy Is So Massive It Shouldn't Exist  LIVE SCIENCE · 1 week
A gigantic black hole 15,000 light-years from our planet is twice as massive as what researchers thought was possible in our own galaxy. more
Ultraluminous X-ray source UGC 6456 ULX investigated in detail  PHYS.ORG · 2 weeks
Russian astronomers have performed a detailed study of one of the ultraluminous X-ray sources (ULXs) in the galaxy UGC 6456. Results of the research, presented in a paper published November... more
Astronomers Find ‘Impossible’ Stellar Black Hole in Milky Way  SCI-NEWS.COM · 2 weeks
An international team of astronomers has discovered an exceptionally massive black hole of stellar origin with a mass... more
Mapping our galaxy's magnetic field  PHYS.ORG · 2 weeks
Astronomers from CSIRO and Curtin University have used pulsars to probe the Milky Way's magnetic field. Working with colleagues in Europe, Canada, and South Africa, they have published the most precise catalogue of measurements towards mapping our Galaxy's... more
Astronomers Spot Huge Magnetic Structures in ‘Whale Galaxy’  SCI-NEWS.COM · 2 weeks
Astronomers using NSF’s Karl G. Jansky Very Large Array (VLA) have captured a new image of the edge-on barred spiral... more
The Simultaneous Merging of Giant Galaxies  ASTRO WATCH · 2 weeks
An international research team led by scientists from Göttingen and Potsdam proved for the first time that the galaxy NGC 6240 contains three supermassive... more
Scientists inch closer than ever to signal from cosmic dawn  PHYS.ORG · 2 weeks
Around 12 billion years ago, the universe emerged from a great cosmic dark age as the first stars and galaxies lit up. With a new analysis of data... more
Image: Giant magnetic ropes in a galaxy's halo  PHYS.ORG · 2 weeks
This image of the "Whale Galaxy" (NGC 4631), made with the National Science Foundation's Karl G. Jansky Very Large Array (VLA), reveals hair-like filaments of the galaxy's magnetic field protruding above and... more
Black hole nurtures baby stars a million light years away  PHYS.ORG · 2 weeks
Black holes are famous for ripping objects apart, including stars. But now, astronomers have uncovered a black hole that may have sparked the births of stars over a... more
Caught in the Act: MeerKAT Telescope Spies Stellar Flare  ASTRO WATCH · 2 weeks
Scientists using the MeerKAT radio telescope have discovered a unique and previously-unseen flare of radio emission from a... more
More dark-matter-deficient dwarf galaxies found  PHYS.ORG · 2 weeks
A team of researchers with members affiliated with multiple institutions in China has found evidence for more dark-matter-deficient dwarf galaxies. In their paper published in the journal Nature Astronomy, the group describes their study of dwarf galaxies and... more
Giant magnetic ropes in the outskirts of a spiral galaxy  nanowerk · 2 weeks
Astronomers have investigated polarized radio emission from the galaxy NGC 4631 at the VLA radio telescope. They detected for the first time a regular magnetic field over scales... more
NASA's Webb to unveil the secrets of nearby dwarf galaxies  PHYS.ORG · 2 weeks
In two separate studies using NASA's upcoming James Webb Space Telescope, a team of astronomers will observe dwarf galaxy companions to the Milky Way and the nearby Andromeda... more
Hubble Witnesses Dance of Galaxies: Arp 293  SCI-NEWS.COM · 2 weeks
NASA has released a beautiful photo taken by the NASA/ESA Hubble Space Telescope of the peculiar pair of interacting galaxies called Arp... more
Virgin Galactic rides out early struggles on Wall Street  SPACE NEWS · 2 weeks
Nearly a month after Virgin Galactic’s debut on public markets, the investment community is largely taking a wait-and-see... more
The simultaneous merging of giant galaxies  SCIENCE DAILY · 3 weeks
Scientists proved for the first time that the galaxy NGC 6240 contains three supermassive black holes. The unique observations show the black holes close to each other in the core of the galaxy. The study points... more
Astronomers Find Three Supermassive Black Holes in NGC 6240  SCI-NEWS.COM · 3 weeks
NGC 6240, a well-studied nearby galaxy system in the process of merging, contains three supermassive black holes at... more
Image: Hubble eyes an emitting galaxy  PHYS.ORG · 3 weeks
For this image, the NASA/ESA Hubble Space Telescope turned its powerful eye toward an emission-line galaxy called NGC 3749. more
The simultaneous merging of giant galaxies  PHYS.ORG · 3 weeks
An international research team led by scientists from Göttingen and Potsdam proved for the first time that the galaxy NGC 6240 contains three supermassive black holes. The unique observations, published in the journal Astronomy & Astrophysics,... more
Astronomers discover most energetic gamma-ray burst ever  SCIENCE DAILY · 3 weeks
Gamma-ray bursts are the most energetic phenomenon known to humankind. Although short-lived, they outshine stars and even galactic quasars. They usually display energies in the region of tens of giga-electron-volts, but for the first... more
Breaking the limits: Discovery of the highest-energy photons from a gamma-ray burst  PHYS.ORG · 3 weeks
Gamma-ray bursts (GRBs) are brief and extremely powerful cosmic explosions, suddenly appearing in the sky, about once per day. They are thought to result... more
Outback telescope captures Milky Way center, discovers remnants of dead stars  SCIENCE DAILY · 3 weeks
A radio telescope in the Western Australian outback has captured a spectacular new view of the center of the galaxy in which we live, the Milky... more
Phoenix cluster is cooling faster than expected  MIT · 3 weeks
With increasingly advanced data, Michael McDonald and colleagues study a galaxy cluster bursting with new stars. more
Astronomers Discover 27 New Supernova Remnants in Milky Way  SCI-NEWS.COM · 3 weeks
An international team of astronomers has detected 27 new supernova remnants using a data release of the GaLactic... more
Phoenix cluster is cooler than expected  MIT · 3 weeks
With increasingly advanced data, Michael McDonald and colleagues study a galaxy cluster bursting with new stars. more
Outback telescope captures Milky Way center, discovers remnants of dead stars  PHYS.ORG · 3 weeks
A radio telescope in the Western Australian outback has captured a spectacular new view of the center of the Milky Way galaxy. The image from the... more
Caught in the act: MeerKAT telescope spies stellar flare  PHYS.ORG · 3 weeks
Scientists using the MeerKAT radio telescope have discovered a unique and previously-unseen flare of radio emission from a binary star in our galaxy. more
Blowtorch jets from a black hole drive starbirth  PHYS.ORG · 3 weeks
Supermassive black holes, weighing millions or even billions of times our Sun's mass, are still only a tiny fraction of the mass of the galaxies they inhabit. But in some cases, the... more
Image: Orion A in infrared  PHYS.ORG · 3 weeks
Stars form within giant clouds of gas and dust that pervade galaxies like our own Milky Way. This image depicts one such cloud, known as Orion A, as seen by ESA's Herschel and Planck space observatories. more
Hubble Snaps Stunning Image of Spiral Galaxy NGC 3749  SCI-NEWS.COM · 3 weeks
The NASA/ESA Hubble Space Telescope has captured an amazing new photo of a galaxy called NGC 3749. NGC... more
Orion A in infrared  ESA · 3 weeks
Image: Stars form within giant clouds of gas and dust that pervade galaxies like our own Milky Way. This image depicts one such cloud, known as Orion A,... more
Astrophysicists find when galaxies rotate, size matters  PHYS.ORG · 4 weeks
The direction in which a galaxy spins depends on its mass, researchers have found. more
Image: Hubble spots a curious spiral  PHYS.ORG · 4 weeks
The universe is simply so vast that it can be difficult to maintain a sense of scale. Many galaxies we see through telescopes such as the NASA/ESA Hubble Space Telescope, the source of this beautiful image,... more
This Is How Light May Have Escaped from the Earliest Galaxies, Turning the Universe Transparent  LIVE SCIENCE · 4 weeks
An intervening cluster of galaxies acts like a cosmic microscope and bends and magnifies light from a distant... more
'Are we alone?' Study refines which exoplanets are potentially habitable  SCIENCE DAILY · 4 weeks
Researchers are first to combine 3D climate modeling with atmospheric chemistry to explore the habitability of planets around M dwarf stars, which comprise about 70% of the total... more
Star Ejected from Milky Way's 'Heart of Darkness' Reaches Mind-Blowing Speed  LIVE SCIENCE · 4 weeks
As humankind's ancestors were learning to walk upright, a star was launched out of the supermassive black hole at the center of our galaxy at a... more
S5-HVS1: Hypervelocity Star Ejected by Milky Way’s Supermassive Black Hole  SCI-NEWS.COM · 4 weeks
A main-sequence hypervelocity star traveling at huge speeds after being ejected by Sagittarius A*, the supermassive... more
Astronomers conduct one of the most detailed studies of a stellar halo  PHYS.ORG · 4 weeks
An international team of astronomers has used the Subaru Telescope to probe the stellar halo of the nearby Messier 81 (M81) galaxy. The observations... more
A runaway star ejected from the galactic heart of darkness  SCIENCE DAILY · 4 weeks
Astronomers have spotted an ultrafast star, traveling at a blistering 6 million km/h, that was ejected by the supermassive black hole at the heart at the Milky Way... more
Hyper-fast star ejected by supermassive black hole  nanowerk · 4 weeks
Astronomers have spotted an ultrafast star, travelling at a blistering 6 million km/h, ejected by the supermassive black hole at the heart at the Milky Way five million years ago. more
Is there life on super-Earths? The answer could lie in their cores  PHYS.ORG · 4 weeks
Rocky planets larger than our own, so-called super-Earths, are surprisingly abundant in our Galaxy, and stand as the most likely planets to be habitable.... more
Hubble Captures a Dozen Sunburst Arc Doppelgangers  ASTRO WATCH · 4 weeks
Astronomers using the NASA/ESA Hubble Space Telescope have observed a galaxy in the distant regions of the Universe which appears duplicated at... more
Image: Hubble touts a team of stars  PHYS.ORG · 4 weeks
Within a galaxy hosting around 300 billion stars, here the NASA/ESA Hubble Space Telescope has captured a mere handful or two—just about enough to form a single football team. These stellar "teammates" play under... more
Galactic Fountains and Carousels: Order Emerging from Chaos  ASTRO WATCH · 4 weeks
Scientists from Germany and the United States have unveiled the results of a newly-completed, state of the art simulation of... more
Hubble Observes Hidden Depths of NGC 772  SCI-NEWS.COM · 4 weeks
The NASA/ESA Hubble Space Telescope has captured a striking new photo of a spiral galaxy called NGC 772. NGC 772 resides approximately... more
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