Free Republic 2nd Quarter Fundraising Target: $88,000 Receipts & Pledges to-date: $54,770
62%  
Woo hoo!! And we're now over 62%!! Thank you all very much for your continuing support!

Keyword: galaxy

Brevity: Headers | « Text »
  • Astronomers access huge amounts of data on the stars in our galaxy from Gaia space telescope

    04/25/2018 3:44:06 PM PDT · by BBell · 10 replies
    Aa Astronomers are celebrating a massive data release that offers them the richest ever map of the Milky Way. The information comes from ESA's GAIA space telescope, which has surveyed almost two billion stars in our galaxy. They now have very precise data on billions of stars around our galaxy that will make for decades of analysis. It gives them the possibility to research the history of our galaxy and postulate what might happen in the future, too.Astronomer François Mignard was one of the founding fathers of the GAIA mission. So why does this data release make such a difference...
  • "We Truly Don't Know What It Is" --Mystery Milky-Way Spectrum of Light Observed...

    04/18/2018 12:04:23 AM PDT · by LibWhacker · 34 replies
    "We Truly Don't Know What It Is" --Mystery Milky-Way Spectrum of Light Observed 'Not Produced By Any Known Emission' April 17, 2018   "We use special telescopes to catch X-ray light in the sky, and while looking at these X-rays, the telescopes noticed an unexpected feature and captured a spectrum of light, which is not produced by any known atomic emission," said University of Miami astrophysicist Nico Cappelluti. "This emission line is now called the 3.5 kiloelectron volt (keV). One interpretation of this emission line is that it's produced by the decay of dark matter." "This 3.5 keV emission line is...
  • A Closer Look At DF2, The Mysterious Dark Matter-Deficient Galaxy That Is Bending...

    04/05/2018 12:18:21 PM PDT · by LibWhacker · 10 replies
    Tech Times ^ | 3/30/18 | Maui Hermitanio
    The discovery of NGC 1052-DF2 has led scientists on the quest for more dark matter-deficient galaxies. What really makes up the rare and mysterious DF2 galaxy? Dark matter supposedly composes 27 percent of the cosmos, but the newly discovered DF2 galaxy, has none of it. New Galaxy In TownScientists researching ultra-diffuse galaxies have spotted a large, sparse galaxy in the northern constellation of Cetus. The mysterious galaxy is almost as big as the Milky Way but has only 1 percent of its stars. The galaxy is almost empty except for densely clustered stars moving very slow at an estimate of...
  • Are the Milky Way’s borders expanding?

    04/04/2018 9:19:56 PM PDT · by MtnClimber · 31 replies
    Astronomy ^ | 3 Apr, 2018 | Amber Jorgenson
    Hundreds of billions of stars make up the barred spiral galaxy that we call home. The Milky Way’s 100,000 light-year diameter houses stars of different masses, luminosities, and ages, with new stars constantly being added to the mix. Star formation isn’t showing signs of slowing down, and this includes births at the outer edges of the galaxy. Could these young stars forming near the galactic edge be expanding the size of the Milky Way? A team of researchers, led by Ph.D. candidate Cristina Martínez-Lombilla of the Instituto de Astrofísica de Canarias in Spain, presented research supporting this idea at the...
  • Hubble Telescope Spies Gorgeous Galaxy Merger (Video, Photo)

    03/11/2018 12:07:46 PM PDT · by Simon Green · 23 replies
    Space.com ^ | 03/11/18 | Mike Wall
    Two merging spiral galaxies are caught twisting each other into cosmic knots in a spectacular photo by the Hubble Space Telescope. The colliding galaxies comprise a system known as Arp 256, which lies about 350 million light-years from Earth, in the constellation Cetus (the Whale). "The galaxies are ablaze with dazzling regions of star formation: The bright blue fireworks are stellar nurseries, churning out hot infant stars," officials with the European Space Agency (ESA) wrote in a description of the image Thursday (March 8). (The Hubble project is a collaboration between NASA and ESA.) "These vigorous bursts of new...
  • Distant Galaxies Challenge Our Understanding of Star Formation

    01/22/2018 3:50:38 PM PST · by MtnClimber · 20 replies
    Real Clear Science ^ | 22 Jan, 2018 | Marie Martig
    The most massive galaxies in our neighbourhood formed their stars billions of years ago, early in the history of the universe. At the present day, they produce very few new stars. Astronomers have long believed that is because they contain very little gas – a key ingredient necessary to produce stars. But our new study, published in Nature Astronomy, is now challenging this long held view. Through probing the extreme environments of faraway massive galaxies, we can learn not only about their evolution and the history of the universe, but most importantly about the fundamental processes regulating the formation of...
  • Hackers Unlock Samsung Galaxy S8 With Fake Iris

    05/23/2017 12:45:55 PM PDT · by Red Badger · 15 replies
    motherboard.vice.com ^ | May 23 2017, 7:13am | Joe Cox
    Biometric locks for phones are just getting more and more elaborate. Not content with fingerprints, some devices now offer facial recognition tech for accessing a device, and in the Samsung Galaxy S8's case, an iris scanner too. Despite Samsung stating that a user's irises are pretty much impossible to copy, a team of hackers has done just that. Using a bare-bones selection of equipment, researchers from the Chaos Computer Club (CCC) show in a video how they managed to bypass the scanner's protections and unlock the device. "We've had iris scanners that could be bypassed using a simple print-out," Linus...
  • A Huge Cosmic Void Is Repelling Our Galaxy

    01/31/2017 4:57:42 PM PST · by MtnClimber · 65 replies
    Real Clear Science ^ | 30 Jan, 2017 | Ross Pomeroy
    Today, in the journal Nature Astronomy, a team of researchers led by Hebrew University cosmologist Yehuda Hoffman has reported that they've found... nothing. To be clear, they've found something, but that something is essentially nothing. Specifically, Hoffman and his colleagues have spotted an immense, naked region of space which they predict to be largely devoid of galaxies. Since this region is relatively empty of matter, it is exerting a repelling effect on the Local Group of galaxies, which includes Andromeda, the Triangulum Galaxy, and our own Milky Way. The researchers made the discovery by visualizing the velocities of various galaxies...
  • Fire on Plane Caused by Replacement Samsung Galaxy Note 7

    10/05/2016 12:35:39 PM PDT · by House Atreides · 21 replies
    macrumors.com ^ | October 5, 2016 | Juli Clover
    Over the past few weeks, Samsung has been replacing recalled Galaxy Note 7 smartphones that have faulty exploding batteries with new devices, but an incident today suggests the South Korean company's smartphone woes aren't over. A Southwest flight from Louisville to Baltimore was today evacuated just before it pulled out of the gate because a Samsung Galaxy Note 7 smartphone started smoking. While no one was injured, there is a serious problem -- the Galaxy Note 7 in question was a replacement device that had been deemed "safe" by Samsung. According to The Verge, the owner of the Galaxy Note...
  • Astronomers Discover New Galaxy That Is 99.99% Dark Matter

    08/25/2016 10:16:17 PM PDT · by LibWhacker · 41 replies
    Popular Mechanics ^ | 8/25/16 | Avery Thompson
    Astronomers Discover New Galaxy That Is 99.99% Dark Matter ​Scientists hope this new galaxy could help uncover the truth about dark matter. NASA 149 A team of astronomers at the Keck Observatory in Maunakea, Hawaii, have discovered a massive galaxy made of 99.99 percent dark matter.The galaxy, called Dragonfly 44, is part of a collection of galaxies discovered a year ago by the same team. These galaxies are the same size and shape of regular galaxies, but contain far fewer stars. And now we know why: they're made almost entirely of dark matter. Advertisement - Continue Reading Below Mysterious Origins...
  • Sharpest ever view of the Andromeda Galaxy

    07/05/2016 10:16:32 PM PDT · by LibWhacker · 45 replies
    Space Telescope ^ | J. Dalcanton (Univ. of Washington), et al.
    Sharpest ever view of the Andromeda Galaxy This image, captured with the NASA/ESA Hubble Space Telescope, is the largest and sharpest image ever taken of the Andromeda galaxy -- otherwise known as M31.This is a cropped version of the full image and has 1.5 billion pixels. You would need more than 600 HD television screens to display the whole image.It is the biggest Hubble image ever released and shows over 100 million stars and thousands of star clusters embedded in a section of the galaxy's pancake-shaped disc stretching across over 40 000 light-years.This image is too large to be easily...
  • Astronomy Picture of the Day -- NGC 6814: Grand Design Spiral Galaxy from Hubble

    06/21/2016 1:24:44 PM PDT · by SunkenCiv · 8 replies
    NASA ^ | Tuesday, June 21, 2016 | (see photo credit)
    Explanation: In the center of this serene stellar swirl is likely a harrowing black-hole beast. The surrounding swirl sweeps around billions of stars which are highlighted by the brightest and bluest. The breadth and beauty of the display give the swirl the designation of a grand design spiral galaxy. The central beast shows evidence that it is a supermassive black hole about 10 million times the mass of our Sun. This ferocious creature devours stars and gas and is surrounded by a spinning moat of hot plasma that emits blasts of X-rays. The central violent activity gives it the designation...
  • Never-before-seen galaxy spotted orbiting the Milky Way

    04/15/2016 7:44:48 AM PDT · by MtnClimber · 21 replies
    New Scientist ^ | 14 Apr, 2016 | Ken Croswell
    The galaxy’s empire has a new colony. Astronomers have detected a dwarf galaxy orbiting the Milky Way whose span stretches farther than nearly all other Milky Way satellites. It may belong to a small group of galaxies that is falling into our own. Giant galaxies like the Milky Way grew large when smaller galaxies merged, according to simulations. The simulations also suggest that whole groups of galaxies can fall into a single giant at the same time. The best examples in our cosmic neighbourhood are the Large and Small Magellanic Clouds, the Milky Way’s two brightest satellites, which probably orbit...
  • Milky Way Grew From the Inside Out

    03/17/2016 8:09:54 PM PDT · by MtnClimber · 17 replies
    D News ^ | 11 Jan, 2016 | IRENE KLOTZ
    Scientists have made a cosmic growth chart of the Milky Way galaxy, an innovative blending of data collected by the ongoing Sloan Digital Sky Survey and a new technique to determine the ages of stars. As expected, the analysis shows the galaxy’s central disk formed from the inside out, with red giant stars as old as about 13 billion years clustered toward the center and younger stars about 1 billion years old closer to the disk’s edge, astronomer Melissa Ness, with the Max Planck Institute for Astronomy in Heidelberg, Germany, told reporters at the American Astronomical Society meeting in Kissimmee,...
  • Farthest Galaxy Yet Smashes Cosmic Distance Record

    03/04/2016 3:51:26 AM PST · by LibWhacker · 34 replies
    space.com ^ | 3/3/16 | Calla Cofield
    Farthest Galaxy Yet Smashes Cosmic Distance Record By Calla Cofield, Space.com Staff Writer March 3, 2016 04:45pm ET MORE Please upgrade your Flash Plugin The Hubble Space Telescope just calculated the distance to the most far-out galaxy ever measured, providing scientists with a look deep into the history of the universe. The far-away galaxy, named GN-z11, existed a mere 400 million years after the Big Bang, or about 13.3 billion years ago. Because the light from such a distant galaxy must travel huge distances to reach Earth, scientists are seeing the galaxy as it looked over 13 billion years ago....
  • A visual comparison of the largest known galaxy to the Milky Way

    03/02/2016 9:37:50 AM PST · by LibWhacker · 60 replies
  • The most luminous galaxy is being torn apart by a black hole

    01/18/2016 9:03:18 AM PST · by Citizen Zed · 53 replies
    cbs news ^ | 1-18-2016 | BRIAN MASTROIANNI
    The galaxy, which is called W2246-0526 and 12.4 billion light years from Earth, is the most luminous in the universe, according to a 2015 NASA study. If all galaxies were the same distance from us, this one would shine the brightest. In new research, published in The Astrophysical Journal Letters, this shiniest of galaxies is expelling incredibly turbulent gases, which has never been evidenced in this kind of space body before. "It is like a pot of boiling water being heated up by a nuclear reactor in the center," Tanio Diaz-Santos of the Universidad Diego Portales in Santiago, Chile, lead...
  • Astronomy Picture of the Day -- Barred Spiral Galaxy NGC 1300

    01/09/2016 1:41:47 PM PST · by SunkenCiv · 11 replies
    NASA ^ | January 09, 2016 | (see photo credit)
    Explanation: Big, beautiful, barred spiral galaxy NGC 1300 lies some 70 million light-years away on the banks of the constellation Eridanus. This Hubble Space Telescope composite view of the gorgeous island universe is one of the largest Hubble images ever made of a complete galaxy. NGC 1300 spans over 100,000 light-years and the Hubble image reveals striking details of the galaxy's dominant central bar and majestic spiral arms. In fact, on close inspection the nucleus of this classic barred spiral itself shows a remarkable region of spiral structure about 3,000 light-years across. Like other spiral galaxies, including our own Milky...
  • Image: Hubble views two galaxies merging

    12/31/2015 2:16:08 PM PST · by Red Badger · 15 replies
    phys.org ^ | December 31, 2015 | Provided by: NASA
    Credit: ESA/Hubble & NASA, Acknowledgement: Judy Schmidt ---------------------------------------------------------------------------------------------------------------------------------------- This image, taken with the Wide Field Planetary Camera 2 on board the NASA/ESA Hubble Space Telescope, shows the galaxy NGC 6052, located around 230 million light-years away in the constellation of Hercules. It would be reasonable to think of this as a single abnormal galaxy, and it was originally classified as such. However, it is in fact a "new" galaxy in the process of forming. Two separate galaxies have been gradually drawn together, attracted by gravity, and have collided. We now see them merging into a single structure. As the merging...
  • Galactic Monster Mystery Revealed in Ancient Universe [Galaxies that shouldn't exist!]

    11/19/2015 12:26:11 PM PST · by Red Badger · 34 replies
    Discovery.com ^ | Nov 19, 2015 07:00 AM ET | by Ian O'Neill Source: ESO
    ESO's VISTA survey telescope has spied a horde of previously hidden massive galaxies that existed when the Universe was in its infancy. By discovering and studying more of these galaxies than ever before, astronomers have for the first time found out exactly when such monster galaxies first appeared. The newly discovered massive galaxies are marked on this image of the UltraVISTA field. [RED CIRCLES] ================================================================================================================ Astronomers have detected something baffling at the furthest frontiers of our observable universe: massive galaxies -- lots of massive galaxies -- that shouldn't even exist. Depending on the wavelength you observe the universe in,...