Big Bang

Big Bang News -- ScienceDaily Big Bang theory and the birth of the universe. Science articles on dark matter clumps birthing galaxies, the time before the Big Bang and more. Images.

  • Cosmologists create largest simulation of galaxy formation, break their own record
    on March 19, 2018 at 4:04 pm

    Cosmology researchers are releasing initial findings from IllustrisTNG, their follow-up to the 2015 record-breaking Illustris simulation -- the largest-ever hydrological simulation of galaxy formation. […]

  • Double or nothing: Astronomers rethink quasar environment
    on March 13, 2018 at 1:30 pm

    Astronomers have identified nearly 200 'protoclusters,' the progenitors of galaxy clusters, in the early Universe, about 12 billion years ago, about ten times more than previously known. They also found that quasars don't tend to reside in protoclusters; but if there is one quasar in a protocluster, there is likely a second nearby. This result raises doubts about the relation between protoclusters and quasars. […]

  • Arrested development: Hubble finds relic galaxy close to home
    on March 12, 2018 at 6:15 pm

    Astronomers have put NASA's Hubble Space Telescope on an Indiana Jones-type quest to uncover an ancient 'relic galaxy' in our own cosmic backyard. […]

  • A peculiar galactic clash
    on March 8, 2018 at 3:52 pm

    Galaxies are not static islands of stars -- they are dynamic and ever-changing, constantly on the move through the darkness of the Universe. Sometimes, as seen in this spectacular Hubble image of Arp 256, galaxies can collide in a crash of cosmic proportions. […]

  • Physicists lay groundwork to better understand the birth of the universe
    on March 6, 2018 at 7:16 pm

    Scientists have developed the first techniques for describing the thermodynamics of very small systems with very high energy -- like the universe at the start of the Big Bang -- which could lead to a better understanding of the birth of the universe and other cosmological phenomena. […]

  • Chemical sleuthing unravels possible path to forming life's building blocks in space
    on March 5, 2018 at 4:15 pm

    Scientists have used experiments to retrace the chemical steps leading to the creation of complex hydrocarbons in space. They showed pathways to forming 2-D carbon-based nanostructures in a mix of heated gases. […]

  • 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. […]

  • Black holes from small galaxies might emit gamma rays
    on February 28, 2018 at 6:41 pm

    Researchers have discovered seven galaxies that could shake up what astrophysicists thought they knew about how the size of a galaxy -- and the black hole at its center -- can affect its behavior. […]

  • 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. […]

  • Improved Hubble yardstick gives fresh evidence for new physics in the universe
    on February 22, 2018 at 9:20 pm

    Astronomers have used NASA's Hubble Space Telescope to make the most precise measurements of the expansion rate of the universe since it was first calculated nearly a century ago. Intriguingly, the results are forcing astronomers to consider that they may be seeing evidence of something unexpected at work in the universe. […]

  • Some black holes erase your past
    on February 21, 2018 at 2:13 pm

    Physicists insist on determinism: your past and present determine your future uniquely, per Einstein's equations of general relativity. They call this strong cosmic censorship. A mathematician found some types of black holes -- charged, non-rotating objects in an expanding universe -- that allow an observer inside the black hole to travel across a horizon into a place where the past is obliterated and there are an infinite number of possible futures for every initial state. […]

  • No relation between a supermassive black hole and its host galaxy?
    on February 20, 2018 at 5:30 pm

    Using ALMA to observe an active galaxy with a strong ionized gas outflow from the galactic center, a team has obtained a result making astronomers even more puzzled -- the team clearly detected CO gas associated with the galactic disk, yet they have also found that the CO gas which settles in the galaxy is not affected by the strong ionized gas outflow launched from the galactic center. […]

  • 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. […]

  • 'Ultramassive' black holes discovered in far-off galaxies
    on February 20, 2018 at 2:32 pm

    Thanks to data collected by NASA’s Chandra X-ray telescope on galaxies up to 3.5 billion light years away from Earth, an international team of astrophysicists was able to detect what is likely to be the most massive black holes ever discovered in the universe. The team’s calculations showed that these “ultramassive” black holes are growing faster than the stars in their respective galaxies. […]

  • Why we have yet to find extraterrestrial life
    on February 16, 2018 at 7:27 pm

    Are we alone in the universe? Few questions have captured the public imagination more than this. Yet to date we know of just one sample of life, that which exists here on Earth. […]

  • Humans will actually react pretty well to news of alien life
    on February 16, 2018 at 7:27 pm

    Hollywood has it wrong. Humans would actually react positively to news of alien life -- intelligent or microbial. […]

  • Astrophysicists settle cosmic debate on magnetism of planets and stars
    on February 9, 2018 at 6:14 pm

    Using one of the world's most powerful laser facilities, a team of scientists experimentally confirmed a long-held theory for cosmic magnetic field generation: the turbulent dynamo. By creating a hot turbulent plasma the size of a penny, that lasts a few billionths of a second, the researchers recorded how the turbulent motions can amplify a weak magnetic field to the strengths of those observed in our sun, distant stars, and galaxies. […]

  • Distant galaxy group contradicts common cosmological models, simulations
    on February 1, 2018 at 7:29 pm

    Astronomers have determined that Centaurus A, a massive elliptical galaxy 13 million light-years from Earth, is accompanied by a number of dwarf satellite galaxies orbiting the main body in a narrow disk. The researchers note that this is the first time such a galactic arrangement has been observed outside the Local Group, home to the Milky Way. […]

  • Supermassive black holes can feast on one star per year
    on February 1, 2018 at 7:14 pm

    Supermassive black holes in some galaxies can eat stars at a rate of one per year in the period following a galactic merger, helping explain a longstanding astronomical mystery about eccentric stellar orbits. […]

  • How black holes shape the cosmos
    on February 1, 2018 at 1:58 pm

    Astrophysicists have gained new insights into the formation and evolution of galaxies. They calculated how black holes influence the distribution of dark matter, how heavy elements are produced and distributed throughout the cosmos, and where magnetic fields originate. This was possible by developing and programming a new simulation model for the universe, which created the most extensive simulations of this kind to date. […]

  • Overabundance of massive stars in the Tarantula Nebula
    on January 31, 2018 at 4:03 pm

    Astronomers have revealed an 'astonishing' overabundance of massive stars in a neighboring galaxy. The discovery, made in a gigantic star-forming region of the Large Magellanic Cloud galaxy, has 'far-reaching' consequences for our understanding of how stars transformed the pristine Universe into the one we live in today. […]

  • Stellar embryos in nearby dwarf galaxy contain surprisingly complex organic molecules
    on January 30, 2018 at 8:22 pm

    The nearby dwarf galaxy known as the Large Magellanic Cloud (LMC) is a chemically primitive place. Unlike the Milky Way, this semi-spiral collection of a few tens-of-billions of stars lacks our galaxy's rich abundance of heavy elements, like carbon, oxygen, and nitrogen. With such a dearth of heavy elements, astronomers predict that the LMC should contain a comparatively paltry amount of complex carbon-based molecules. Previous observations of the LMC seem to support that view. New observations have uncovered the surprisingly clear chemical 'fingerprints' of the complex organic molecules methanol, dimethyl ether, and methyl formate. Though previous observations found hints of methanol in the LMC, the latter two are unprecedented findings and stand as the most complex molecules ever conclusively detected outside of our galaxy. […]

  • Applying machine learning to the universe's mysteries
    on January 30, 2018 at 5:36 pm

    Physicists have demonstrated that computers are ready to tackle the universe's greatest mysteries -- they used neural networks to perform a deep dive into data simulating the subatomic particle soup that may have existed just microseconds after the big bang. […]

  • Scientist unlocks gamma ray burst secrets
    on January 23, 2018 at 4:25 pm

    Scientists have recreated the first ever mini version of a gamma ray burst in a laboratory, opening up a whole new way to investigate their properties and potentially unlocking some of the mysteries around possible alien civilizations. […]

  • New for three types of extreme-energy space particles: Theory shows unified origin
    on January 22, 2018 at 4:08 pm

    One of the biggest mysteries in astroparticle physics has been the origins of ultrahigh-energy cosmic rays, very high-energy neutrinos, and high-energy gamma rays. Now, a new theoretical model reveals that they all could be shot out into space after cosmic rays are accelerated by powerful jets from supermassive black holes. The model may set a new milestone on the path toward solving the half-century-old enigma of the origin of the highest-energy particles in the universe. […]

  • Challenging existing models of black holes
    on January 19, 2018 at 1:59 pm

    A new study expands the scientific community's understanding of black holes in our galaxy and the magnetic fields that surround them. […]

  • 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. […]