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.

  • Astronomers find potential solution into how planets form
    on October 13, 2017 at 4:32 pm

    The quest to discover how planets found in the far reaches of the universe are born has taken a new, crucial twist. […]

  • Astronomers reveal evidence of dynamical dark energy
    on October 3, 2017 at 3:10 pm

    Astronomers found that the nature of dark energy may not be the cosmological constant introduced by Albert Einstein 100 years ago. This is crucial for the study of dark energy. […]

  • Supersonic gas streams left over from the Big Bang drive massive black hole formation
    on September 28, 2017 at 6:20 pm

    A super-computer simulation by an international team of researchers has shown the formation of a rapidly growing star from supersonic gas streams in the early universe left over from the Big Bang. The star ends its life with catastrophic collapse to leave a black hole with a mass of 34,000 times that of the Sun. […]

  • Cartography of the Cosmos
    on September 26, 2017 at 1:16 pm

    There are hundreds of billions of stars in our own Milky Way galaxy, interspersed with all manner of matter, from the dark to the sublime. This is the universe that one group of researchers is trying to reconstruct, structure by structure, combining telescope surveys with next-generation data analysis and simulation techniques currently being primed for exascale computing. […]

  • Is the Milky Way an 'outlier' galaxy? Studying its 'siblings' for clues
    on September 20, 2017 at 3:33 pm

    The most-studied galaxy in the universe -- the Milky Way -- might not be as 'typical' as previously thought, according to a new study. Early results from the Satellites Around Galactic Analogs (SAGA) Survey indicate that the Milky Way's satellites are much more tranquil than other systems of comparable luminosity and environment. Many satellites of those 'sibling' galaxies are actively pumping out new stars, but the Milky Way's satellites are mostly inert. […]

  • Physicists offer explanation for diverse galaxy rotations
    on September 14, 2017 at 7:22 pm

    Physicists have found a simple and viable explanation for the diversity observed in galactic rotations. They report that diverse galactic-rotation curves, a graph of rotation speeds at different distances from the center, can be naturally explained if dark matter particles are assumed to strongly collide with one another in the inner halo, close to the galaxy's center -- a process called dark matter self-interaction. […]

  • New supernova analysis reframes dark energy debate
    on September 13, 2017 at 11:31 pm

    The accelerating expansion of the Universe may not be real, but could just be an apparent effect, according to new research. The new study finds the fit of Type Ia supernovae to a model universe with no dark energy to be very slightly better than the fit to the standard dark energy model. […]

  • Superhuman 'night' vision during the total eclipse?
    on September 5, 2017 at 8:40 pm

    It was dark as night during the recent total solar eclipse, yet people and objects were easier to see than on a typical moonless night. Scientists have discovered a possible biological explanation -- the presence (or absence) of a protein in the retina known as a GABA receptor. […]

  • What lit up the universe? Black holes may have punctured darkened galaxies, allowing light to escape
    on August 30, 2017 at 3:48 pm

    Researchers have a new explanation for how the universe changed from darkness to light. They propose that black holes within galaxies produce winds strong enough to fling out matter that punctures holes in galaxies, allowing light to escape. […]

  • A silent search for dark matter
    on August 22, 2017 at 3:30 pm

    Results from its first run indicate that XENON1T is the most sensitive dark matter detector on Earth. The sensitivity of the detector -- an underground sentinel awaiting a collision that would confirm a hypothesis - stems from both its size and its 'silence.' […]

  • 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. […]