Dark Matter

Dark Matter News -- ScienceDaily Dark Matter and Dark Energy. Read what astronomers are discovering about a gaping hole in the universe, how dark matter clumps contribute to galaxy formation and more. Space images.

  • Cosmic velocity web: Motions of thousands of galaxies mapped
    on August 15, 2017 at 1:51 pm

    The cosmic web -- the distribution of matter on the largest scales in the universe -- has usually been defined through the distribution of galaxies. Now, a new study by a team of astronomers demonstrates a novel approach. Instead of using galaxy positions, they mapped the motions of thousands of galaxies. […]

  • New theory on the origin of dark matter
    on August 8, 2017 at 6:59 pm

    Scientists have come up with a new theory on how dark matter may have been formed shortly after the origin of the universe. This new model proposes an alternative to the WIMP paradigm that is the subject of various experiments in current research. […]

  • Primordial black holes may have helped to forge heavy elements
    on August 4, 2017 at 5:18 pm

    Astronomers like to say we are the byproducts of stars, stellar furnaces that long ago fused hydrogen and helium into the elements needed for life through the process of stellar nucleosynthesis. But what about the heavier elements in the periodic chart, elements such as gold, platinum and uranium? Astronomers believe most of these "r-process elements" -- elements much heavier than iron -- were created, either in the aftermath of the collapse of massive stars and the associated supernova explosions, or in the merging of binary neutron star systems. […]

  • Dark Energy Survey reveals most accurate measurement of universe's dark matter
    on August 3, 2017 at 4:06 pm

    Dark Energy Survey scientists have unveiled the most accurate measurement ever made of the present large-scale structure of the universe. These measurements of the amount and 'clumpiness' (or distribution) of dark matter in the present-day cosmos were made with a precision that, for the first time, rivals that of inferences from the early universe by the European Space Agency's orbiting Planck observatory. […]

  • Dawn of the cosmos: Seeing galaxies that appeared soon after the Big Bang
    on July 26, 2017 at 6:33 pm

    Astronomers have discovered 23 young galaxies, seen as they were 800 million years after the Big Bang. […]

  • Cosmologists produce new maps of dark matter dynamics
    on July 25, 2017 at 4:21 pm

    New maps of dark matter dynamics in the Universe have been produced by a team of international cosmologists, outlines a new report. […]

  • Flashes of light on dark matter
    on July 21, 2017 at 2:13 pm

    A web that passes through infinite intergalactic spaces, a dense cosmic forest illuminated by very distant lights and a huge enigma to solve. These are the picturesque ingredients of a scientific research that adds an important element for understanding one of the fundamental components of our Universe: dark matter. […]

  • Hubble's hidden galaxy
    on July 7, 2017 at 5:38 pm

    Although IC 342 is bright, the galaxy sits near the equator of the Milky Way's disk, thick with glowing cosmic gas, bright stars, and dust, report investigators. […]

  • 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. […]

  • 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. […]

  • 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. […]

  • How most antimatter in the Milky Way forms: Mystery solved
    on May 24, 2017 at 2:45 pm

    Astrophysicists have now shown how most of the antimatter in the Milky Way forms. […]

  • CAST project places new limitations on dark matter
    on May 23, 2017 at 2:43 pm

    CERN research results deliver no evidence for the existence of solar axions. […]

  • 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. […]

  • 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. […]

  • 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. […]

  • New insight into dark matter halos
    on April 17, 2017 at 3:47 pm

    Researchers used the Sloan Digital Sky Survey to find evidence that the dark matter halos surrounding galaxies and galaxy clusters have a discernible edge. […]

  • 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. […]

  • Satellite galaxies at edge of Milky Way coexist with dark matter
    on March 30, 2017 at 8:49 pm

    New research rules out a challenge to the accepted standard model of the universe and theory of how galaxies form by shedding new light on a problematic structure. […]

  • Explaining the accelerating expansion of the universe without dark energy
    on March 30, 2017 at 3:52 pm

    Enigmatic dark energy, thought to make up 68% of the universe, may not exist at all, according to a Hungarian-American team. The researchers believe that standard models of the universe fail to take account of its changing structure, but that once this is done the need for dark energy disappears. […]

  • New portal to unveil the dark sector of the universe
    on March 23, 2017 at 12:39 pm

    Once upon a time, the Universe was just a hot soup of particles. In those days, together with visible particles, other particles to us hidden or dark might have formed. Billions of years later scientists catalogued 17 types of visible particles, with the most recent one being the Higgs boson, creating the 'Standard Model'. However, they are still struggling to detect the hidden particles, the ones that constitute the dark sector of the Universe. […]

  • Dark matter less influential in galaxies in early universe
    on March 15, 2017 at 6:38 pm

    New observations indicate that massive, star-forming galaxies during the peak epoch of galaxy formation, 10 billion years ago, were dominated by baryonic or 'normal' matter. This is in stark contrast to present-day galaxies, where the effects of mysterious dark matter seem to be much greater. This surprising result was obtained using ESO's Very Large Telescope and suggests that dark matter was less influential in the early universe than it is today. […]

  • First public data released by Hyper Suprime-Cam Subaru Strategic Program
    on March 10, 2017 at 1:42 pm

    The first massive data set of a 'cosmic census' has been released using the largest digital camera on the Subaru Telescope. With its beautiful images now available for the public at large, figuring out the fate of the Universe has come one step closer. […]

  • Experiment makes substantial leap forward in quest for dark matter
    on March 1, 2017 at 6:20 pm

    New research represents a significant improvement on previous detection constraints, and a substantial step forward in the search for dark matter. […]

  • Astronomy: Dark matter mapped
    on March 1, 2017 at 3:56 pm

    One of the highest-resolution maps of dark matter ever created has now been revealed, offering a detailed case for the existence of cold dark matter -- sluggish particles that comprise the bulk of matter in the universe. […]

  • A new cosmic survey offers unprecedented view of galaxies
    on March 1, 2017 at 3:54 pm

    Scientists have published a 'cosmic census' of a large swath of the night sky containing roughly 100 million stars and galaxies, including some of the most distant objects in the universe. These high-quality images allow an unprecedented view into the nature and evolution of galaxies and dark matter. […]