Cosmology

Cosmology News -- ScienceDaily Cosmology news. From deep observations of the far reaches of space and time to spectroscopic analysis and more. Read cosmology articles and consider how astronomers view the origin of the universe.

  • Does dark matter annihilate quicker in the Milky Way?
    on June 23, 2017 at 2:04 pm

    A new theory predicts how dark matter may be annihilating much more rapidly in the Milky Way, than in smaller or larger galaxies and the early Universe. […]

  • Massive dead disk galaxy challenges theories of galaxy evolution
    on June 21, 2017 at 6:51 pm

    By combining the power of a 'natural lens' in space with the capability of NASA's Hubble Space Telescope, astronomers made a surprising discovery -- the first example of a compact yet massive, fast-spinning, disk-shaped galaxy that stopped making stars only a few billion years after the big bang. […]

  • A unique data center for cosmological simulations
    on June 20, 2017 at 3:41 pm

    Scientists have established 'Cosmowebportal', a unique data center for cosmological simulations. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results. […]

  • Galaxy alignments traced back 10 billion years
    on June 13, 2017 at 3:16 pm

    The most massive galaxies in the universe have been aligned with their surroundings for at least ten billion years. This discovery shows that galaxies, like people, are influenced by their environment from a young age. […]

  • New strategy to search for ancient black holes
    on June 13, 2017 at 2:29 pm

    An interdisciplinary team of physicists and astronomers has devised a new strategy to search for 'primordial' black holes produced in the early universe. Such black holes are possibly responsible for the gravitational wave events observed by the Laser Interferometer Gravitational-Wave Observatory. […]

  • The largest virtual Universe ever simulated
    on June 9, 2017 at 2:22 pm

    Researchers have simulated the formation of our entire Universe with a large supercomputer. A gigantic catalogue of about 25 billion virtual galaxies has been generated from 2 trillion digital particles. This catalogue is being used to calibrate the experiments on board the Euclid satellite, that will be launched in 2020 with the objective of investigating the nature of dark matter and dark energy. […]

  • Cosmic inflation: Higgs says goodbye to his 'little brother'
    on June 8, 2017 at 4:36 pm

    In the first moments after the Big Bang, the Universe was able to expand even billions of billions of billions of times faster than today. Such rapid expansion should be due to a primordial force field, acting with a new particle: inflaton. From the latest analysis of the decay of mesons, carried out in the LHCb experiment by physicists from Cracow and Zurich, it appears, however, that the most probable light inflaton almost certainly does not exist. […]

  • Celestial boondocks: Study supports the idea we live in a void
    on June 7, 2017 at 6:29 pm

    A new study not only firms up the idea that we exist in one of the holes of the Swiss cheese structure of the cosmos, but helps ease the apparent disagreement between different measurements of the Hubble Constant, the unit cosmologists use to describe the rate at which the universe is expanding today. […]

  • Jackpot! Cosmic magnifying-glass effect captures universe's brightest galaxies
    on June 6, 2017 at 7:57 pm

    Boosted by natural magnifying lenses in space, NASA's Hubble Space Telescope has captured unique close-up views of the universe's brightest infrared galaxies, which are as much as 10,000 times more luminous than our Milky Way. […]

  • ALMA returns to Boomerang Nebula
    on June 5, 2017 at 3:09 pm

    A companion star crashing into a red giant star may explain the chilling power to the Boomerang Nebula. […]

  • Are dense star clusters the origin of the gravitational waves discovered by LIGO?
    on June 2, 2017 at 3:28 pm

    Much to their surprise, scientists are finding dozens of black holes deep within densely packed collections of stars called globular clusters. […]

  • Knowledge by simplification: Scientists explore strong force
    on June 2, 2017 at 12:50 pm

    The “strong force” plays a crucial role for the existence of matter in the visible universe, scientists report. They used a method of theoretical simplification which might be applicable to heavier nuclei. […]

  • Do stars fall quietly into black holes, or crash into something utterly unknown?
    on May 30, 2017 at 3:51 pm

    Astronomers have put a basic principle of black holes to the test, showing that matter completely vanishes when pulled in. Their results constitute another successful test for Albert Einstein's General Theory of Relativity. […]

  • Just after the Big Bang: Galaxies created stars a hundred times faster now
    on May 24, 2017 at 5:11 pm

    A team of astronomers has discovered a new kind of galaxy which, although extremely old -- formed less than a billion years after the Big Bang -- creates stars more than a hundred times faster than our own Milky Way. […]

  • Volunteers help find star that exploded 970 million years ago, predating the dinosaurs
    on May 24, 2017 at 2:15 pm

    Online volunteers have helped astronomers find a star that exploded 970 million years ago, predating the dinosaurs' time on Earth. […]

  • Mapping super massive black holes in the distant universe
    on May 19, 2017 at 5:18 pm

    Astronomers have constructed the first map of the Universe based on the positions of supermassive black holes, which reveals the large-scale structure of the Universe. […]

  • Solving one of nature's great puzzles: What drives the accelerating expansion of the universe?
    on May 15, 2017 at 3:11 pm

    Physicists may have solved one of nature's great puzzles: What causes the accelerating expansion of our universe? […]

  • Origin of Milky Way's hypothetical dark matter signal may not be so dark
    on May 2, 2017 at 4:12 pm

    A mysterious gamma-ray glow at the center of the Milky Way is most likely caused by pulsars. The findings cast doubt on previous interpretations of the signal as a potential sign of dark matter. […]

  • Intergalactic gas and ripples in the cosmic web
    on April 27, 2017 at 6:17 pm

    A team of astronomers has made the first measurements of small-scale ripples in primeval hydrogen gas using rare double quasars. […]

  • New survey hints at exotic origin for the Cold Spot
    on April 25, 2017 at 4:48 pm

    A supervoid is unlikely to explain a 'Cold Spot' in the cosmic microwave background, according to the results of a new survey, leaving room for exotic explanations like a collision between universes. […]

  • Hubble's cosmic bubbles
    on April 21, 2017 at 3:32 pm

    Hubble has revealed a few of the tenuous threads comprising Sh2-308, a faint and wispy shell of gas located 5,200 light-years away in Canis Major. […]

  • Light rays from a supernova bent by the curvature of space-time around a galaxy
    on April 20, 2017 at 6:17 pm

    Astronomers have detected for the first time multiple images from a gravitationally lensed Type Ia supernova. The new observations suggest promising new avenues for the study of the accelerated expansion of the universe, gravity and distribution of dark matter in the universe. […]

  • Hubble celebrates 27 years with two close friends
    on April 20, 2017 at 3:37 pm

    This stunning cosmic pairing of the two very different looking spiral galaxies NGC 4302 and NGC 4298 was imaged by the NASA/ESA Hubble Space Telescope. The image brilliantly captures their warm stellar glow and brown, mottled patterns of dust. […]

  • Astronomers perform largest-ever survey of high-mass binary star systems
    on April 20, 2017 at 1:02 pm

    82 new high-mass binaries located in the Tarantula Nebula, also known as 30 Doradus, have been identified and characterized in the Large Magellanic Cloud, an international group of astronomers reports. […]

  • Supermassive black holes stifle galaxy growth
    on April 18, 2017 at 3:53 pm

    Supermassive black hole winds in a newly discovered class of galaxies are so energetic they suppress future star formation. […]

  • Milky Way: Hydrogen halo lifts the veil of our galactic home
    on April 18, 2017 at 3:15 pm

    Astronomers have reported the first detections of diffuse hydrogen wafting about in a vast halo surrounding the Milky Way. […]

  • Meet 'DeeDee,' a distant, dim member of our solar system
    on April 12, 2017 at 3:57 pm

    Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have revealed extraordinary details about a recently discovered far-flung member of our solar system, the planetary body 2014 UZ224, more informally known as DeeDee. […]

  • Collisions generate gas in debris disks
    on April 12, 2017 at 2:13 pm

    By examining the atomic carbon line from two young star systems -- 49 Ceti and Beta Pictoris -- researchers had found atomic carbon in the disk, the first time this observation has been made at sub-millimeter wavelength, hinting that the gas in debris disks is not primordial, but rather is generated from some process of collisions taking place in the debris disk. […]

  • First 'image' of a dark matter web that connects galaxies
    on April 12, 2017 at 1:12 pm

    Researchers have been able to capture the first composite image of a dark matter bridge that connects galaxies together. […]

  • Scientist measures brightness of the universe with NASA's New Horizons spacecraft
    on April 11, 2017 at 5:58 pm

    Images taken by NASA's New Horizons mission on its way to Pluto, and now the Kuiper Belt, have given scientists an unexpected tool for measuring the brightness of all the galaxies in the universe. […]