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Keyword: galaxy

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  • Astronomers Found the Ghost of a Rare Giant Radio Galaxy

    11/09/2015 6:14:29 AM PST · by Red Badger · 33 replies
    gizmodo.com ^ | 11/08/15 4:05pm | Kiona Smith-Strickland
    Image: J021659-044920. The red and yellow lobes are the galaxy’s radio lobes. The red spot in the center is the visible galaxy. Prathamesh Tamhane/Yogesh Wadadekar. ================================================================================================================== Astronomers in India have discovered a very unusual galaxy, and it’s dying. By now, in fact, it’s probably already dead. The new galaxy, known as J021659-044920, is 9 billion light years away from Earth. That means it’s really old in cosmic terms (but not quite as old as the oldest object astronomers have ever found, a galaxy 13 billion light years away called UDFy-38135539). Viewed in the visible spectrum, J021659-044920spans about 100,000 light years...
  • iPhone 6s goes on sale in Samsung’s home market to long queues; earlier online pre-order sellout

    10/25/2015 12:40:52 PM PDT · by Swordmaker · 36 replies
    9 to 5 Mac ^ | October 23, 2015 | By Ben Lovejoy
    The iPhone 6s/Plus seems pretty popular already in Samsung’s home market of Korea, despite only going on sale today. All three major carriers earlier reported that they quickly sold out when the new iPhones were made available for pre-order on Monday. Now Patently Apple notes queues of hundreds of people at retail stores, with some having waited in line for 24 hours …  Lines of hundreds of iPhones 6s purchasers in Korea Local brands Samsung and LG were clearly concerned, having both dropped the prices of their flagship devices prior to the iPhone 6s/Plus going on sale in Korea, and Samsung making its Galaxy Note...
  • More Evidence for Coming Black Hole Collision (total mass > a billion suns)

    09/22/2015 9:34:46 AM PDT · by LibWhacker · 49 replies
    NYTimes ^ | 9/16/15 | Dennis Overbye
    The apocalypse is still on, apparently — at least in a galaxy about 3.5 billion light-years from here. Last winter, a team of Caltech astronomers reported that two supermassive black holes appeared to be spiraling together toward a cataclysmic collision that could bring down the curtains in that galaxy. The evidence was a rhythmic flickering from the galaxy’s nucleus, a quasar known as PG 1302-102, which Matthew Graham and his colleagues interpreted as the fatal mating dance of a pair of black holes with a total mass of more than a billion suns. Their merger, the astronomers calculated, could release...
  • Astronomy Picture of the Day -- The Large Cloud of Magellan

    08/26/2015 11:33:32 PM PDT · by SunkenCiv · 9 replies
    NASA ^ | August 27, 2015 | (see photo credit)
    Explanation: The 16th century Portuguese navigator Ferdinand Magellan and his crew had plenty of time to study the southern sky during the first circumnavigation of planet Earth. As a result, two fuzzy cloud-like objects easily visible to southern hemisphere skygazers are known as the Clouds of Magellan, now understood to be satellite galaxies of our much larger, spiral Milky Way galaxy. About 160,000 light-years distant in the constellation Dorado, the Large Magellanic Cloud (LMC) is seen here in a remarkably deep, colorful, image. Spanning about 15,000 light-years or so, it is the most massive of the Milky Way's satellite galaxies...
  • Giant Galaxy Ring Shouldn't Exist

    08/24/2015 7:30:54 AM PDT · by fishtank · 89 replies
    Institute for Creation Research ^ | 8-24-15 | Jake Hebert, Ph.D.
    Giant Galaxy Ring Shouldn't Exist by Jake Hebert, Ph.D. * A team of astronomers from Hungary and the United States, led by Professor Lajos Balázs of Konkoly Observatory in Budapest, has announced the discovery of an enormous ring of galaxies. According to the Big Bang model, this ring should not exist.1,2,3 The galaxies were identified from gamma-ray bursts (GRBs)—extremely intense, narrow beams of high-energy electromagnetic radiation which are thought to result from the collapse of high-mass stars. The astronomers estimated that the gamma-ray bursts originated in nine galaxies located approximately seven billion light-years from Earth. These galaxies are thought to...
  • New record: Keck Observatory measures most distant galaxy

    08/06/2015 12:35:20 PM PDT · by Red Badger · 5 replies
    phys.org ^ | 08-05-2015 | by Steve Jefferson & Provided by: W. M. Keck Observatory
    EGSY8p7 is the most distant confirmed galaxy whose spectrum obtained with the W. M. Keck Observatory places it at a redshift of 8.68 at a time when the Universe was less than 600 million years old. The illustration shows the remarkable progress made in recent years in probing early cosmic history. Such studies are important in understanding how the Universe evolved from an early dark period to one when galaxies began to shine. Hydrogen emission from EGSY8p7 may indicate it is the first known example of an early generation of young galaxies emitting unusually strong radiation. Credit: Adi Zitrin, California...
  • Pre-installed keyboard leaves 600 million Samsung smartphones vulnerable to hackers

    06/17/2015 9:32:15 PM PDT · by Swordmaker · 32 replies
    Digital Trends ^ | June 17, 2015 | By Robert Nazarian
    If your rocking a Samsung smartphone, you could be vulnerable to hackers, thanks to a preinstalled keyboard on your device.The vulnerability was discovered by Ryan Welton from mobile security specialists NowSecure. The issue is with the preinstalled Swift keyboard which looks for language pack updates over an unencrypted line. Welton found that a hacker could create a spoof proxy server and send a fake update to the device with malicious code. The hacker could then exploit the device by eavesdropping on incoming and outgoing messages or voice calls, access personal data such as pictures or text messages, tamper with apps,...
  • More evidence that the Milky Way has four spiral arms

    05/12/2015 12:33:15 PM PDT · by Red Badger · 30 replies
    Phys.Org ^ | 05-12-2015 | by Dan Majaess, Universe Today
    Astronomers have been arguing over just how many spiral arms our galaxy exhibits. Is the Milky Way a four or two-armed spiral galaxy? Astronomers had often assumed the Milky Way was potentially a four-armed spiral galaxy, but comparatively recent observations from NASA's Spitzer telescope implied the galaxy had two spiral arms. In 2013, astronomers mapped star forming regions and argued they had found the two missing arms, bringing the total number of arms back to four. The case for a four-armed Milky Way may have just gotten stronger. A team of Brazilian astronomers used star clusters embedded in their natal...
  • Astronomers unveil the farthest galaxy

    05/05/2015 10:50:45 AM PDT · by Red Badger · 29 replies
    Phys.Org ^ | 05-05-2015 | Provided by Yale University
    An international team of astronomers led by Yale University and the University of California-Santa Cruz have pushed back the cosmic frontier of galaxy exploration to a time when the universe was only 5% of its present age. The team discovered an exceptionally luminous galaxy more than 13 billion years in the past and determined its exact distance from Earth using the powerful MOSFIRE instrument on the W.M. Keck Observatory's 10-meter telescope, in Hawaii. It is the most distant galaxy currently measured. The galaxy, EGS-zs8-1, was originally identified based on its particular colors in images from NASA's Hubble and Spitzer space...
  • Size of the Milky Way Upgraded, Solving Galaxy Puzzle

    05/04/2015 2:19:04 PM PDT · by LibWhacker · 17 replies
    Space.com ^ | 4/4/15 | Shannon Hall
    The Corrugated Galaxy The disk of the Milky Way Galaxy disk may actually be rippled. Two ringlike structures of stars wrapping around the Milky Way's outer disk now appear to belong to the disk itself. The results, outlined in a new study, show that the disk is about 60 percent larger than previously thought. Not only do the results extend the size of the Milky Way, they also reveal a rippling pattern, which raises intriguing questions about what sent wavelike fluctuations rippling through the disk. The researchers said the likely culprit was a dwarf galaxy. It might have plunged...
  • Astronomy Picture of the Day -- Milky Way over Erupting Volcano

    04/13/2015 7:30:07 AM PDT · by SunkenCiv · 10 replies
    NASA ^ | April 13, 2015 | (see photo credit)
    Explanation: The view was worth the trip. Battling high winds, cold temperatures, and low oxygen, the trek to near the top of the volcano Santa Maria in Guatemala -- while carrying sensitive camera equipment -- was lonely and difficult. Once set up, though, the camera captured this breathtaking vista during the early morning hours of February 28. Visible on the ground are six volcanoes of the Central America Volcanic Arc, including Fuego, the Volcano of Fire, which is seen erupting in the distance. Visible in the sky, in separate exposures taken a few minutes later, are many stars much further...
  • In Milky Way, 100 Billion Planets May Exist in Habitable Zone

    03/23/2015 12:44:17 AM PDT · by 2ndDivisionVet · 57 replies
    Weather.com ^ | March 18, 2015 | Michele Berger
    Life on Earth exists becuase of the sun and our distance from it. Without that star and the energy it gives off, we’d be what NASA once described as a “lifeless ball of ice-coated rock.” Luckily, we are far enough from it, and as of right now, it’s not radiating so much light as to make our planet uninhabitable. In some ways, we’re in the sweet spot, and researchers may have discovered many more such connections. Stars in the Milky Way may have 100 billion planets — two, on average, per star — in their habitable zone, the area far...
  • The corrugated galaxy: Milky Way may be much larger than previously estimated

    03/13/2015 7:50:24 AM PDT · by Red Badger · 38 replies
    Phys.Org ^ | Mar 11, 2015 | Provided by Rensselaer Polytechnic Institute
    The Milky Way galaxy is at least 50 percent larger than is commonly estimated, according to new findings that reveal that the galactic disk is contoured into several concentric ripples. The research, conducted by an international team led by Rensselaer Polytechnic Institute Professor Heidi Jo Newberg, revisits astronomical data from the Sloan Digital Sky Survey which, in 2002, established the presence of a bulging ring of stars beyond the known plane of the Milky Way. "In essence, what we found is that the disk of the Milky Way isn't just a disk of stars in a flat plane—it's corrugated," said...
  • Astronomers Find a Dusty Galaxy That Shouldn't Exist

    03/02/2015 10:11:37 AM PST · by Red Badger · 32 replies
    nationalgeographic.com ^ | Published March 2, 2015 | Michael D. Lemonick
    A object from the very early universe is bafflingly rich with dust that theory says shouldn't have formed yet. Photograph by NASA, ESA, the Hubble Heritage Team (STScI/AURA), J. Blakeslee (NRC Herzberg Astrophysics Program, Dominion Astrophysical Observatory), and H. Ford (JHU) Astronomers have spotted a surprisingly dusty little galaxy within the cluster Abell 1689, shown here in an image by the Hubble telescope. Peering back in time to find the very earliest objects in the universe, an international team of astronomers has discovered a galaxy that shouldn't be there at all. The problem, the scientists report Monday in Nature, is...
  • Astronomers find 'new' dwarf galaxy in Milky Way's neighborhood

    12/27/2014 4:18:14 PM PST · by BenLurkin · 37 replies
    latimes.com ^ | Amina Khan
    Astronomers searching the sky with NASA’s Hubble Space Telescope have discovered an odd little dwarf galaxy in our very own backyard -- a mere 7 million light years away.. ... Given that these isolated dwarf spheroidal galaxies are so hard to find, there could be many more of these fascinating galactic fossils just hanging out in the darkness of our own intergalactic neighborhood, just waiting to be found,
  • Illustration sequence of the Milky Way and Andromeda Galaxy colliding (as seen from Earth)

    12/09/2014 12:27:37 AM PST · by LibWhacker · 20 replies
  • Throwback Thursday: Seeing through our galaxy

    11/21/2014 10:58:31 PM PST · by LibWhacker · 7 replies
    Medium ^ | 11/20/14 | Ethan Siegel
    When we look out at the Universe, our view is pretty consistently dominated by the stars within our own galaxy. Although we know that many interesting things lie beyond — globular clusters, individual galaxies, and rich clusters and superclusters of galaxies — being in the Milky Way makes it very hard to see a great many of them. This is because our own galaxy, from our vantage point within it, dominates a huge fraction of the sky overhead. Image credit: Richard Payne, of Arizona Astrophotography.The plane of the Milky Way itself obscures about a total of 20% of our night sky. What appears...
  • Hubble Helps Find Smallest Known Galaxy Containing a Supermassive Black Hole

    09/19/2014 9:41:15 AM PDT · by ConservingFreedom · 15 replies
    NASA ^ | September 17, 2014 | Felicia Chou
    Astronomers using data from NASA’s Hubble Space Telescope and ground observation have found an unlikely object in an improbable place -- a monster black hole lurking inside one of the tiniest galaxies ever known. The black hole is five times the mass of the one at the center of our Milky Way galaxy. It is inside one of the densest galaxies known to date -- the M60-UCD1 dwarf galaxy that crams 140 million stars within a diameter of about 300 light-years, which is only 1/500th of our galaxy’s diameter. If you lived inside this dwarf galaxy, the night sky would...
  • Laniakea: Our home supercluster (Video)

    09/07/2014 12:28:21 AM PDT · by JerseyanExile · 13 replies
    Youtube ^ | Sep 3, 2014 | Nature Video
    Superclusters – regions of space that are densely packed with galaxies – are the biggest structures in the Universe. But scientists have struggled to define exactly where one supercluster ends and another begins. Now, a team based in Hawaii has come up with a new technique that maps the Universe according to the flow of galaxies across space. Redrawing the boundaries of the cosmic map, they redefine our home supercluster and name it Laniakea, which means ‘immeasurable heaven’ in Hawaiian. Video Link
  • Astronomy Picture of the Day -- Massive Nearby Spiral Galaxy NGC 2841

    04/21/2014 7:43:44 AM PDT · by SunkenCiv · 5 replies
    NASA ^ | April 21, 2014 | (see photo credit)
    Explanation: It is one of the more massive galaxies known. A mere 46 million light-years distant, spiral galaxy NGC 2841 can be found in the northern constellation of Ursa Major. This sharp view of the gorgeous island universe shows off a striking yellow nucleus and galactic disk. Dust lanes, small, pink star-forming regions, and young blue star clusters are embedded in the patchy, tightly wound spiral arms. In contrast, many other spirals exhibit grand, sweeping arms with large star-forming regions. NGC 2841 has a diameter of over 150,000 light-years, even larger than our own Milky Way and captured by this...