Subscribe: Brightsurf Science News :: Galaxies News
http://www.brightsurf.com/rss.news.xml?search=Galaxies&ru
Added By: Feedage Forager Feedage Grade A rated
Language: English
Tags:
astronomers  black hole  black holes  black  dark matter  dark  distant  galaxies  galaxy  hole  supermassive black  universe  years 
Rate this Feed
Rate this feedRate this feedRate this feedRate this feedRate this feed
Rate this feed 1 starRate this feed 2 starRate this feed 3 starRate this feed 4 starRate this feed 5 star

Comments (0)

Feed Details and Statistics Feed Statistics
Preview: Brightsurf Science News :: Galaxies News

Galaxies Current Events and Galaxies News from Brightsurf



Galaxies Current Events and Galaxies News Events, Discoveries and Articles from Brightsurf



Copyright: Copyright 2018, Brightsurf.com
 



New research collaboration with UTSA professor challenges existing models of black holes

Fri, 19 Jan 18 00:14:00 -0800

Chris Packham, associate professor of physics and astronomy at The University of Texas at San Antonio (UTSA), has collaborated on a new study that expands the scientific community's understanding of black holes in our galaxy and the magnetic fields that surround them.



North, east, south, west: The many faces of Abell 1758

Thu, 18 Jan 18 00:01:50 -0800

Resembling a swarm of flickering fireflies, this beautiful galaxy cluster glows intensely in the dark cosmos, accompanied by the myriad bright lights of foreground stars and swirling spiral galaxies. A1758N is a sub-cluster of Abell 1758, a massive cluster containing hundreds of galaxies. Although it may appear serene in this NASA/ESA Hubble Space Telescope image, the sub-cluster actually comprises two even smaller structures currently in the turbulent process of merging.



Redshift space distortions measured by quasars in scientific first

Tue, 16 Jan 18 00:08:40 -0800

The eBOSS team released its latest results on Jan. 10, 2018: a measurement of redshift space distortions (RSD) with high significance has been successfully accomplished using observations of quasars distributed 6.8 to 10.5 billion light years away from Earth (with redshifts 0.8 to 2.2). This is the first probe of cosmic structure growth using quasars.



Hubble weighs in on mass of 3 million billion suns

Tue, 16 Jan 18 00:00:30 -0800

In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion suns. Known officially as ACT-CLJ0102-4915, it is the largest, hottest, and brightest X-ray galaxy cluster ever discovered in the distant universe.



GBT detection unlocks exploration of 'aromatic' interstellar chemistry

Thu, 11 Jan 18 00:14:10 -0800

Astronomers using the Green Bank Telescope have made the first definitive interstellar detection of benzonitrile, an intriguing organic molecule that helps to chemically link simple carbon-based molecules and truly massive ones known as polycyclic aromatic hydrocarbons. This discovery is a vital clue in a 30-year-old mystery: identifying the source of a faint infrared glow that permeates the Milky Way and other galaxies.



Astronomers detect 'whirlpool' movement in earliest galaxies

Wed, 10 Jan 18 00:11:40 -0800

Astronomers have looked back to a time soon after the Big Bang, and have discovered swirling gas in some of the earliest galaxies to have formed in the universe. These 'newborns' -- observed as they appeared nearly 13 billion years ago -- spun like a whirlpool, similar to our own Milky Way. This is the first time that it has been possible to detect movement in galaxies at such an early point in the universe's history.



New stellar streams confirm 'melting pot' history of the galaxy

Wed, 10 Jan 18 00:12:40 -0800

Public release of Dark Energy Survey data continues trend toward 'Big Data' in astronomy.



Dark energy survey publicly releases first three years of data

Wed, 10 Jan 18 00:15:00 -0800

At a special session held during the American Astronomical Society meeting in Washington, D.C., scientists on the Dark Energy Survey (DES) announced today the public release of their first three years of data. This first major release of data from the Survey includes information on about 400 million astronomical objects, including distant galaxies billions of light-years away as well as stars in our own galaxy.



Black hole research could aid understanding of how small galaxies evolve

Tue, 09 Jan 18 00:07:50 -0800

Scientists have solved a cosmic mystery by finding evidence that supermassive black holes prevent stars forming in some smaller galaxies.



Supermassive black holes control star formation in large galaxies

Mon, 01 Jan 18 00:03:00 -0800

Young galaxies blaze with bright new stars forming at a rapid rate, but star formation eventually shuts down as a galaxy evolves. A new study, published Jan. 1, 2018, in Nature, shows that the mass of the black hole in the center of the galaxy determines how soon this 'quenching' of star formation occurs.



Study of a microquasar from our Galaxy to explain the structure of distant radio galaxies

Mon, 18 Dec 17 00:08:50 -0800

The research, led by the University of Jaén in collaboration with the University of Barcelona, has been published by Nature Communications journal and suggests that there are fewer gravitational waves than expected.



Dawn of a galactic collision

Thu, 14 Dec 17 00:12:50 -0800

A riot of color and light dances through this peculiarly shaped galaxy, NGC 5256. Its smoke-like plumes are flung out in all directions and the bright core illuminates the chaotic regions of gas and dust swirling through the galaxy's center. Its odd structure is due to the fact that this is not one galaxy, but two -- in the process of a galactic collision.



Doing without dark energy

Wed, 13 Dec 17 00:09:20 -0800

Three mathematicians have a different explanation for the accelerating expansion of the universe that does without theories of 'dark energy.' Einstein's original equations for General Relativity actually predict cosmic acceleration due to an 'instability,' they argue in paper published recently in Proceedings of the Royal Society A.



The Aurora Australis, or Southern Lights, over the South Pole Telescope.

Thu, 07 Dec 17 00:03:30 -0800

Observations of two galaxies made with the National Science Foundation-funded Atacama Large Millimeter/submillimeter Array (ALMA) radio telescope suggest that large galaxies formed faster than scientists had previously thought.



Galaxy orbits in the local supercluster

Thu, 07 Dec 17 00:00:10 -0800

A team of astronomers from Maryland, Hawaii, Israel and France has produced the most detailed map ever of the orbits of galaxies in our extended local neighborhood, showing the past motions of almost 1,400 galaxies within 100 million light years of the Milky Way. The team reconstructed the galaxies' motions from 13 billion years in the past to the present day.



Newly discovered Goliath galaxies from early universe hint at massive dark matter trove

Wed, 06 Dec 17 00:16:30 -0800

A newfound pair of galaxies from the early universe is so massive that it nearly breaks the current understanding of how the cosmos evolved. The larger of the pair is the heftiest galaxy ever seen from the first billion years of the universe. Two galactic giants in such proximity suggest the presence of an enveloping dark matter halo equivalent to 1 trillion times the sun's mass, nearly as large as physically possible at the time.



Gargantua in the mist: A precocious black hole behemoth at the edge of cosmic dawn

Wed, 06 Dec 17 00:15:10 -0800

To understand when supermassive black holes first appeared, astronomers scan the skies for actively-feeding black holes (known as 'quasars') from the Universe's distant past. The latest discovery, by a team led by Eduardo Bañados (Carnegie Observatories) and published today in the journal Nature, is a record-breaker: J1342+0928, the most distant quasar known.



Found: The most distant supermassive black hole ever observed

Wed, 06 Dec 17 00:15:00 -0800

A team of astronomers led by Carnegie's Eduardo Bañados used Carnegie's Magellan telescopes to discover the most-distant supermassive black hole ever observed. It resides in a luminous quasar and its light reaches us from when the universe was only 5 percent of its current age -- just 690 million years after the Big Bang.



Scientists observe supermassive black hole in infant universe

Wed, 06 Dec 17 00:14:40 -0800

A team of astronomers has detected the most distant supermassive black hole ever observed. The black hole sits in the center of an ultrabright quasar and presents a puzzle as to how such a huge object could have grown so quickly.



ALMA finds massive primordial galaxies swimming in vast ocean of dark matter

Wed, 06 Dec 17 00:14:30 -0800

ALMA observations push back the epoch of massive-galaxy formation even further by identifying two giant galaxies seen when the universe was only 780 million years old, or about 5 percent its current age.



MACHOs are dead, WIMPs are a no-show -- say hello to SIMPs

Mon, 04 Dec 17 00:09:50 -0800

The nature of dark matter remains elusive, with numerous experimental searches for WIMPs coming up empty-handed and MACHOs all but abandoned. Theorists have proposed a different type of dark matter particle, a strongly interacting massive particle or SIMP, that differs from WIMPs in that they interact strongly with one another and hardly at all with normal matter. The dark matter structure of a galaxy pile-up could be evidence for SIMPs.



MUSE probes uncharted depths of Hubble Ultra Deep Field
Astronomers using the MUSE instrument on ESO's Very Large Telescope in Chile have conducted the deepest spectroscopic survey ever. They focused on the Hubble Ultra Deep Field, measuring distances and properties of 1600 very faint galaxies including 72 galaxies that have never been detected before. This groundbreaking dataset has already resulted in 10 science papers that are being published in a special issue of Astronomy