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.

  • Last of universe's missing ordinary matter
    on June 20, 2018 at 7:00 pm

    Researchers have helped to find the last reservoir of ordinary matter hiding in the universe. […]

  • Dark inflation opens up a gravitational window onto the first moments after the Big Bang
    on June 7, 2018 at 2:09 pm

    Dark matter and dark energy may have driven inflation, the exponential expansion of the Universe moments after the Big Bang. A new cosmological model proposed by physicists, which takes dark inflation into account, is the first to outline a precise chronology of the main events during the early history of our Universe. The model makes a spectacular prediction: that it should be possible to detect gravitational waves that were formed just fractions of a second after the creation of spacetime. […]

  • How do you weigh a galaxy? Especially the one you're in?
    on June 6, 2018 at 9:38 pm

    Pinning down the mass of a galaxy may seem like an esoteric undertaking, but scientists think it holds the key to unraveling the nature of the elusive, yet-to-be-seen dark matter, and the fabric of our cosmos. A new technique promises more reliable estimates of the masses of galaxies. […]

  • XENON1T experimental data establishes most stringent limit on dark matter
    on May 29, 2018 at 10:53 pm

    Experimental results from the XENON1T dark matter detector limit the effective size of dark matter particles to one-trillionth of one-trillionth of a centimeter squared -- the most stringent limit yet determined for dark matter as established by the world's most sensitive detector. […]

  • Lightening up dark galaxies
    on May 23, 2018 at 1:13 pm

    Astronomers have identified at least six candidates for dark galaxies -- galaxies that have a few (if any) stars in them and are, for that reason, notoriously difficult to detect with current instruments. […]

  • Could a multiverse be hospitable to life?
    on May 14, 2018 at 12:39 pm

    A multiverse -- where our universe is only one of many -- might not be as inhospitable to life as previously thought, according to new research. […]

  • Uncovering the secret law of the evolution of galaxy clusters
    on April 24, 2018 at 1:37 pm

    Using observational data from the Hubble Space Telescope and the Subaru Telescope, the size and mass of galaxy clusters have precisely been measured. The research team analyzed those data and found a simple law that regulates the growth of the clusters. They also showed that the clusters are still young and growing. The newfound law will serve as a tool to clarify the evolutionary history of clusters and the universe. […]

  • An astrophysicist is unlocking the secrets to dark matter
    on April 16, 2018 at 4:15 pm

    New research examines an interesting light source that was captured by four different telescopes each pointing in a different direction in the sky. […]

  • Hubble catches a colossal cluster
    on April 13, 2018 at 5:34 pm

    This NASA/ESA Hubble Space Telescope image shows a massive galaxy cluster glowing brightly in the darkness. […]

  • A cosmic gorilla effect could blind the detection of aliens
    on April 10, 2018 at 5:28 pm

    A well-known experiment with young people bouncing a ball showed that when an observer focuses on counting the passes, he does not detect if someone crosses the stage disguised as a gorilla. Something similar could be happening to us when we try to discover intelligent non-earthly signals, which perhaps manifest themselves in dimensions that escape our perception, such as the unknown dark matter and energy. […]

  • Tiny distortions in universe's oldest light reveal strands in cosmic web
    on April 10, 2018 at 5:27 pm

    Scientists have decoded faint distortions in the patterns of the universe's earliest light to map huge tubelike structures invisible to our eyes -- known as filaments -- that serve as superhighways for delivering matter to dense hubs such as galaxy clusters. […]

  • Hunting for dark matter in the smallest galaxies in the Universe
    on April 6, 2018 at 1:17 pm

    Astrophysicists have created a new method to measure the amount of dark matter at the center of tiny “dwarf” galaxies. […]

  • Dark matter might not be interactive after all
    on April 6, 2018 at 2:34 am

    Astronomers are back in the dark about what dark matter might be, after new observations showed the mysterious substance may not be interacting with forces other than gravity after all. […]

  • Astronomers find 72 bright and fast explosions
    on April 2, 2018 at 11:26 pm

    Gone in a (cosmological) flash: a team of astronomers found 72 very bright, but quick events in a recent survey and are still struggling to explain their origin. […]

  • Cosmic lens helps Hubble capture image of most distant star ever seen
    on April 2, 2018 at 3:07 pm

    Peering through the gravitational lens of a massive galaxy cluster 5 billion light years from Earth, astronomers have discovered a single, blue supergiant star 9 billion light years away, farther than any other normal star seen before. The star, dubbed Icarus, was magnified more than 2,000 times when it passed directly behind a sun-like star in the lensing cluster. This demonstrates a new way of studying stars in the earliest years of the universe. […]

  • Dark matter goes missing in oddball galaxy
    on March 28, 2018 at 5:07 pm

    Galaxies and dark matter go together like peanut butter and jelly. You typically don't find one without the other. […]

  • Unprecedentedly wide and sharp dark matter map
    on March 2, 2018 at 3:18 pm

    A research team released an unprecedentedly wide and sharp dark matter map based on the newly obtained imaging data by Hyper Suprime-Cam on the Subaru Telescope. The dark matter distribution is estimated by the weak gravitational lensing technique. The team found indications that the number of dark matter halos could be inconsistent with what the simplest cosmological model suggests. This could be a new clue to understanding why the expansion of the universe is accelerating. […]

  • Can strongly lensed type 1a supernovae resolve cosmology's biggest controversy?
    on March 1, 2018 at 2:48 pm

    Astrophysicists have discovered how to control the 'micolensing' effects of strongly lensed Type 1a Supernovae with supercomputers at NERSC. Armed with this knowledge they believe they will be able to find 1,000 strongly lensed Type Ia supernovae in realtime from LSST data -- that's 20 times more than previous expectations. […]

  • Search for first stars uncovers 'dark matter'
    on February 28, 2018 at 7:44 pm

    New research offers the first direct proof that dark matter exists and that it is composed of low-mass particles. […]

  • Unlocking the Secrets of the Universe
    on February 28, 2018 at 6:11 pm

    After 12 years of experimental effort, a team of scientists has detected the fingerprints of the earliest stars in the universe. Using radio signals, the detection provides the first evidence for the oldest ancestors in our cosmic family tree, born by a mere 180 million years after the universe began. […]

  • Six decades of cosmology
    on February 28, 2018 at 6:10 pm

    An expert shares his personal reminiscences of the evolution of the subject of cosmology over six decades. He tells of the increase in our confidence in the standard model of cosmology to the extent that it has become a dogma. […]

  • Astronomers reveal secrets of most distant supernova ever detected
    on February 20, 2018 at 3:24 pm

    Astronomers have confirmed the discovery of the most distant supernova ever detected -- a huge cosmic explosion that took place 10.5 billion years ago, or three-quarters the age of the Universe itself. […]

  • The starry sky shows nocturnal animals the way
    on February 19, 2018 at 3:39 pm

    Nocturnal animals can use the stars and the Milky Way to find their way during the darkest hours. […]

  • Hubble sees Neptune's mysterious shrinking storm
    on February 15, 2018 at 6:11 pm

    Three billion miles away on the farthest known major planet in our solar system, an ominous, dark storm -- once big enough to stretch across the Atlantic Ocean from Boston to Portugal -- is shrinking out of existence as seen in pictures of Neptune taken by NASA's Hubble Space Telescope. […]

  • Cosmic x-rays may provide clues to the nature of dark matter
    on February 8, 2018 at 3:42 pm

    Researchers have presented a novel theory of dark matter, which implies that dark matter particles may be very different from what is normally assumed. In particular, their theory involves dark matter particles which are extremely light -- almost one hundred times lighter than electrons, in stark contrast to many conventional models that involve very heavy dark matter particles instead. […]

  • Cosmic dust snakes and starbirth in Lupus 3
    on January 31, 2018 at 2:03 pm

    A dark cloud of cosmic dust snakes across this spectacular wide field image, illuminated by the brilliant light of new stars. This dense cloud is a star-forming region called Lupus 3, where dazzlingly hot stars are born from collapsing masses of gas and dust. […]

  • Chasing dark matter with oldest stars in the Milky Way
    on January 24, 2018 at 3:03 pm

    Just how quickly is the dark matter near Earth zipping around? The speed of dark matter has far-reaching consequences for modern astrophysical research, but this fundamental property has eluded researchers for years. Researchers have now provided the first clue: The solution to this mystery, it turns out, lies among some of the oldest stars in the galaxy.&nbs […]

  • North, east, south, west: The many faces of Abell 1758
    on January 18, 2018 at 7:26 pm

    Resembling a swarm of flickering fireflies, this beautiful galaxy cluster glows intensely in the dark cosmos, accompanied by the myriad bright lights of foreground stars and swirling spiral galaxies. A1758N is a sub-cluster of Abell 1758, a massive cluster containing hundreds of galaxies. Although it may appear serene in this NASA/ESA Hubble Space Telescope image, the sub-cluster actually comprises two even smaller structures currently in the turbulent process of merging. […]

  • Hubble weighs in on mass of 3 million billion suns
    on January 16, 2018 at 7:42 pm

    In 2014, astronomers found an enormous galaxy cluster contains the mass of a staggering three million billion suns -- so it's little wonder that it has earned the nickname of "El Gordo" ("the Fat One" in Spanish)! Known officially as ACT-CLJ0102-4915, it is the largest, hottest, and brightest X-ray galaxy cluster ever discovered in the distant Universe. […]

  • New stellar streams confirm 'melting pot' history of the galaxy
    on January 10, 2018 at 7:13 pm

    Where do the stars in our Galaxy come from? All the stars we see in the night-time sky belong to our Milky Way galaxy, and while most stars were likely born here, in the Milky Way, many appear to have originated in other galaxies and migrated to our shores. Tell-tale evidence comes from streams of stars created when small galaxies interact with the Milky Way. […]