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  • The most distant rotating galaxy hails from 13.3 billion years ago. The galaxy started spinning just 500 million years after the Big Bang

    07/14/2022 6:15:25 AM PDT · by Red Badger · 66 replies
    https://www.sciencenews.org ^ | Jul 13, 2022 | By Lisa Grossman
    A galaxy about 13.3 billion light-years away (inset in this image of a galaxy cluster from the Hubble Space Telescope and the Atacama Large Millimeter/submillimeter Array) is the most distant galaxy to show signs of rotation. ====================================================================== There is a galaxy spinning like a record in the early universe — far earlier than any others have been seen twirling around. Astronomers have spotted signs of rotation in the galaxy MACS1149-JD1, JD1 for short, which sits so far away that its light takes 13.3 billion years to reach Earth. “The galaxy we analyzed, JD1, is the most distant example of a...
  • Next Week, Webb Will Make History. The Teaser Image Is Already Breaking Our Brains

    07/08/2022 7:05:23 AM PDT · by Red Badger · 36 replies
    https://www.sciencealert.com ^ | 8 JULY 2022 | Staff & NASA
    NASA has a provided a tantalizing teaser photo ahead of the highly-anticipated release next week of the first deep-space images from the James Webb Telescope – an instrument so powerful it can peer back into the origins of the Universe. An engineering test image. (NASA, CSA, and FGS team) The US$10 billion observatory – launched in December last year and now orbiting the Sun a million miles (1.5 million kilometers) away from Earth – can look where no telescope has looked before thanks to its enormous primary mirror and instruments that focus on infrared, allowing it to peer through dust...
  • New discovery about distant galaxies: Stars are heavier than we thought

    05/26/2022 9:57:03 AM PDT · by LibWhacker · 27 replies
    University of Copenhagen ^ | 5/25/2022 | Charles Steinhardt, Albert Sneppen
    ASTROPHYSICS A team of University of Copenhagen astrophysicists has arrived at a major result regarding star populations beyond the Milky Way. The result could change our understanding of a wide range of astronomical phenomena, including the formation of black holes, supernovae and why galaxies die. The Andromeda galaxy, our Milky Way's closest neighbor, is the most distant object in the sky that you can see with your unaided eye. For as long as humans have studied the heavens, how stars look in distant galaxies has been a mystery. In a study published today in The Astrophysical Journal, a team of...
  • For The First Time Ever, Astronomers Have Detected Planets Outside Our Galaxy

    02/04/2018 11:03:53 PM PST · by Simon Green · 14 replies
    Science Alert ^ | 02/05/18 | MICHELLE STARR
    In an incredible world first, astrophysicists have detected multiple planets in another galaxy, ranging from masses as small as the Moon to ones as great as Jupiter. Given how difficult it is to find exoplanets even within our Milky Way galaxy, this is no mean feat. Researchers at the University of Oklahoma achieved this thanks to clever use of gravitational microlensing. The technique, first predicted by Einstein's theory of general relativity, has been used to find exoplanets within Milky Way, and it's the only known way of finding the smallest and most distant planets, thousands of light-years from Earth. As...
  • Astronomy Picture of the Day - The Einstein Cross Gravitational Lens

    10/17/2021 2:16:06 PM PDT · by MtnClimber · 12 replies
    APOD.NASA.gov ^ | 17 Oct, 2021 | Image Credit & License: J. Rhoads (Arizona State U.) et al., WIYN, AURA, NOIRLab, NSF
    Explanation: Most galaxies have a single nucleus -- does this galaxy have four? The strange answer leads astronomers to conclude that the nucleus of the surrounding galaxy is not even visible in this image. The central cloverleaf is rather light emitted from a background quasar. The gravitational field of the visible foreground galaxy breaks light from this distant quasar into four distinct images. The quasar must be properly aligned behind the center of a massive galaxy for a mirage like this to be evident. The general effect is known as gravitational lensing, and this specific case is known as the...
  • Two simpatico galaxies hold hands in this gorgeous view of space from Hubble

    10/10/2021 10:15:01 AM PDT · by American Number 181269513 · 37 replies
    Mashable ^ | October 9, 2021 | Adam Rosenberg
    These two galaxies are so tight, the stellar formation encompassing them both actually has a name of its own. Say hello to Arp 91, a pair of spiral galaxies that are situated so close together (in relative terms, space is big) we can actually see their outer arms reaching out and colliding with one another. BFFs on an intergalactic scale. Like a good marriage, these galaxies may share a name but they are their own individuals as well. In the center of the frame is NGC 5953. Just above it and slightly to the right is NGC 5954. They're both...
  • Largest Rotating Structures in the Universe Discovered – Fantastic Cosmic Filaments Where Galaxies Are Relatively Just Specs of Dust

    06/18/2021 11:32:28 AM PDT · by Red Badger · 34 replies
    https://scitechdaily.com ^ | By LEIBNIZ INSTITUTE FOR ASTROPHYSICS JUNE 16, 2021
    Artist’s impression of cosmic filaments: huge bridges of galaxies and dark matter connect clusters of galaxies to each other. Galaxies are funneled on corkscrew like orbits towards and into large clusters that sit at their ends. Their light appears blue-shifted when they move towards us, and red-shifted when they move away. Credit: AIP/ A. Khalatyan/ J. Fohlmeister ==================================================================================== By mapping the motion of galaxies in huge filaments that connect the cosmic web, astronomers at the Leibniz Institute for Astrophysics Potsdam (AIP), in collaboration with scientists in China and Estonia, have found that these long tendrils of galaxies spin on the...
  • A Ginormous Arc of Galaxies Was Just Detected in The Distant Universe

    06/18/2021 8:53:42 AM PDT · by Red Badger · 22 replies
    https://www.sciencealert.com ^ | 18 JUNE 2021 | MICHELLE STARR
    The Universe is a large place, and there are a lot of large things in it. Not just galaxies, but groupings of galaxies, and the cosmic web that connects them all together. Scientists have just discovered what appears to be one of these groupings, and it could have serious implications for our understanding of the evolution of the Universe. It's an almost-symmetrical arc of galaxies at a distance of 9.2 billion light-years away, and, at 3.3 billion light-years across, it's one of the biggest structures ever identified. Astronomers are calling it the Giant Arc, and, if confirmed, it joins a...
  • Black Holes Could Get So Humongous, Astronomers Came Up With a New Size Category

    01/25/2021 8:57:35 AM PST · by Red Badger · 36 replies
    https://www.sciencealert.com ^ | MICHELLE STARR | 25 JANUARY 2021
    There are supermassive black holes. There are ultramassive black holes. How large can these strange objects grow? Well, there could be something even bigger than ultramassive: stupendously large black holes, according to the latest research. Such hypothetical black holes - larger than 100 billion times the mass of the Sun - have been explored in a new paper which names them SLABs, an acronym that stands for "Stupendously LArge Black holeS". "We already know that black holes exist over a vast range of masses, with a supermassive black hole of 4 million solar masses residing at the centre of our...
  • Most distant supermassive black hole known to science is detected by astronomers more than 13 BILLION light years from Earth

    01/12/2021 12:44:29 PM PST · by Red Badger · 41 replies
    https://www.dailymail.co.uk ^ | UPDATED: 13:40 EST, 12 January 2021 | By RYAN MORRISON
    Researchers used the ALMA telescope array in Chile to discover the quasar A quasar is a type of supermassive black hole that is releasing a lot of energy This object was discovered when the universe was just 670 million years old The discovery can help researchers better understand how these objects form Its age and size brings into doubt theories they were formed from collapsed star clusters, with researchers suggesting they instead feast on cold hydrogen gas =========================================================== The most distant supermassive black hole known to science has been detected by astronomers - and it is more than 13 billion...
  • Are primordial black holes really giant gravitinos?

    01/06/2021 5:45:53 PM PST · by BenLurkin · 14 replies
    Live Science ^ | 01/06/2021 | Paul Sutter
    The largest black holes in the universe... sit at the centers of almost every galaxy in the cosmos. Even the Milky Way has one, a monster at 4 million solar masses, designated as Sagittarius A*. ...[A]s far as we know, the only way to form black holes is through the deaths of massive stars. When they die, they leave behind a black hole a few times more massive than the sun. To get to supergiant status, they have to merge with other black holes and/or consume as much gas as possible, bulking up all those millions of solar masses... Either...
  • Astronomy Picture of the Day - Dark Matter in a Simulated Universe

    10/25/2020 2:32:54 PM PDT · by MtnClimber · 10 replies
    APOD.NASA.gov ^ | 25 Oct, 2020 | Illustration Credit & Copyright: Tom Abel & Ralf Kaehler (KIPAC, SLAC), AMNH
    Explanation: Is our universe haunted? It might look that way on this dark matter map. The gravity of unseen dark matter is the leading explanation for why galaxies rotate so fast, why galaxies orbit clusters so fast, why gravitational lenses so strongly deflect light, and why visible matter is distributed as it is both in the local universe and on the cosmic microwave background. The featured image from the American Museum of Natural History's Hayden Planetarium previous Space Show Dark Universe highlights one example of how pervasive dark matter might haunt our universe. In this frame from a detailed computer...
  • Astronomy Picture of the Day - Arp 78: Peculiar Galaxy in Aries

    09/18/2020 4:35:14 PM PDT · by MtnClimber · 8 replies
    APOD.NASA.gov ^ | 18 Sep, 2020 | Image Credit & Copyright: Bernard Miller
    Explanation: Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries, some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy. Also known as NGC 772, the island universe is over 100,000 light-years across and sports a single prominent outer spiral arm in this detailed cosmic portrait. Its brightest companion galaxy, compact NGC 770, is toward the upper right of the larger spiral. NGC 770's fuzzy, elliptical appearance contrasts nicely with a spiky foreground Milky Way star in matching yellowish hues. Tracking along sweeping dust lanes and lined with young...
  • Hubble Discovery Hints at a Serious Problem With Our Understanding of Dark Matter

    09/11/2020 10:56:00 AM PDT · by Red Badger · 61 replies
    www.sciencealert.com ^ | 11 SEPTEMBER 2020 | MICHELLE STARR
    It would be extremely optimistic to suggest that we have a good handle on dark matter. But even the slight grasp we do have may be missing something important. New observations from the Hubble Space Telescope have found much higher concentrations of dark matter than expected in some galaxies, by over an order of magnitude. These concentrations are inconsistent with theoretical models, suggesting that there's a big gap in our understanding - the simulations could be incorrect, or there could be a property of dark matter we don't fully understand, according to the research team. "We have done a lot...
  • Astronomy Picture of the Day - SS 433: Binary Star Micro-Quasar

    08/31/2020 4:41:18 PM PDT · by MtnClimber · 14 replies
    APOD.NASA.gov ^ | 31 Aug, 2020 | Animation Credit: DESY, Science Communication Lab
    Explanation: SS 433 is one of the most exotic star systems known. Its unremarkable name stems from its inclusion in a catalog of Milky Way stars which emit radiation characteristic of atomic hydrogen. Its remarkable behavior stems from a compact object, a black hole or neutron star, which has produced an accretion disk with jets. Because the disk and jets from SS 433 resemble those surrounding supermassive black holes in the centers of distant galaxies, SS 433 is considered a micro-quasar. As illustrated in the animated featured video based on observational data, a massive, hot, normal star is locked in...
  • Andromeda’s sphere of influence is much larger than anyone thought

    08/29/2020 8:22:09 PM PDT · by BenLurkin · 15 replies
    BGR ^ | 08/28/2020 | Mike Wehner
    NASA scientists have spotted what they are calling a “halo” around Andromeda. The halo, which is more like a huge bloom of plasma, stretches 1.3 million light-years into space. That’s roughly halfway to our own galaxy, which is an impressive feat. We often think of galaxies as self-contained collections of stars, planets, and gasses, but that’s simply not the case. The effects of a galaxy extend far beyond their outer edge. In fact, the line between the edge of a galaxy and empty space is so blurred that there’s hardly a real “edge” at all. In the case of Andromeda,...
  • The Most Powerful Gamma Ray Burst Just Corroborated General Relativity Once Again

    07/10/2020 12:12:41 PM PDT · by Red Badger · 8 replies
    www.sciencealert.com ^ | 10 JULY 2020 | MICHELLE STARR
    Last year, scientists detected the most energetic gamma ray burst we've ever seen. A distant galaxy spat out a colossal flare in the range of a trillion electron volts (TeV), providing invaluable new insight into the physics of these incredibly energetic events. That was pretty amazing on its own - but now astrophysicists have used the burst to perform a new, precise test of the theory of general relativity. And - quelle surprise! - this test found that the speed of light is constant in a vacuum. Relativity, once again, has passed with flying colours. The test hinges on a...
  • 4 mysterious objects spotted in deep space are unlike anything ever seen

    07/08/2020 3:37:51 PM PDT · by BenLurkin · 46 replies
    LiveScience ^ | 08 July 2020 | Mara Johnson-Groh
    There's something unusual lurking out in the depths of space: Astronomers have discovered four faint objects that at radio wavelengths are highly circular and brighter along their edges. And they're unlike any class of astronomical object ever seen before. The objects, which look like distant ring-shaped islands, have been dubbed odd radio circles, or ORCs, for their shape and overall peculiarity. Astronomers don't yet know exactly how far away these ORCs are, but they could be linked to distant galaxies. All objects were found away from the Milky Way's galactic plane and are around 1 arcminute across (for comparison, the...
  • Breathtaking new map of the X-ray Universe

    06/20/2020 10:51:41 PM PDT · by MtnClimber · 19 replies
    BBC ^ | 19 Jun, 2020 | Jonathan Amos
    Behold the hot, energetic Universe. A German-Russian space telescope has just acquired a breakthrough map of the sky that traces the heavens in X-rays. The image records a lot of the violent action in the cosmos - instances where matter is being accelerated, heated and shredded. Feasting black holes, exploding stars, and searingly hot gas. The data comes from the eRosita instrument mounted on Spektr-RG. This orbiting telescope was launched in July last year and despatched to an observing position some 1.5 million km from Earth. Once commissioned and declared fully operational in December, it was left to slowly rotate...
  • The Porpoise Galaxy from Hubble

    05/10/2020 8:58:35 AM PDT · by MtnClimber · 27 replies
    NASA ^ | 10 May, 2020 | NASA/Hubble
    NASA Astronomy Picture of the Day (APOD) photo for today. What's happening to this spiral galaxy? Just a few hundred million years ago, NGC 2936, the upper of the two large galaxies shown, was likely a normal spiral galaxy -- spinning, creating stars -- and minding its own business. But then it got too close to the massive elliptical galaxy NGC 2937 below and took a dive. Dubbed the Porpoise Galaxy for its iconic shape, NGC 2936 is not only being deflected but also being distorted by the close gravitational interaction. A burst of young blue stars forms the nose...