Stars – Science

Stars News -- ScienceDaily News about Stars. Read science articles and see images on the birth of monstrous stars, brown dwarfs and red giants. Consider stellar evolution and more.

  • Astrophysicists measure precise rotation pattern of sun-like stars for the first time
    on September 20, 2018 at 8:09 pm

    Scientists have measured the differential rotation on Sun-like stars for the first time, and their findings challenge current science on how stars rotate. […]

  • Gaia hints at our Galaxy’s turbulent life
    on September 19, 2018 at 5:30 pm

    Our Milky Way galaxy is still enduring the effects of a near collision that set millions of stars moving like ripples on a pond, the Gaia star mapping mission has shown. […]

  • Looking back in time to watch for a different kind of black hole
    on September 19, 2018 at 2:10 pm

    A simulation has suggested what astronomers should look for if they search the skies for a direct collapse black hole in its early stages. […]

  • Nuclear pasta, the hardest known substance in the universe
    on September 18, 2018 at 3:08 pm

    A team of scientists has calculated the strength of the material deep inside the crust of neutron stars and found it to be the strongest known material in the universe. […]

  • Magellanic Clouds duo may have been a trio
    on September 18, 2018 at 1:08 pm

    Two of the closest galaxies to the Milky Way -- the Large and Small Magellanic Clouds -- may have had a third companion, astronomers believe. New research describes how another 'luminous' galaxy was likely engulfed by the Large Magellanic Cloud some three to five billion years ago. […]

  • Never-before-seen features found around a neutron star
    on September 17, 2018 at 3:43 pm

    An unusual infrared light emission from a nearby neutron star detected by NASA's Hubble Space Telescope could indicate new features never before seen. […]

  • When is a star not a star?
    on September 17, 2018 at 2:13 pm

    The line that separates stars from brown dwarfs may soon be clearer. Astronomers demonstrate that brown dwarfs can be more massive than astronomers previously thought. […]

  • Astronomers witness birth of new star from stellar explosion
    on September 12, 2018 at 12:12 pm

    Astronomers have observed a new phenomena in the aftermath of a stellar explosion. […]

  • Galactic 'wind' stifling star formation is most distant yet seen
    on September 6, 2018 at 6:15 pm

    For the first time, a powerful 'wind' of molecules has been detected in a galaxy located 12 billion light-years away. Probing a time when the universe was less than 10 percent of its current age, astronomers sheds light on how the earliest galaxies regulated the birth of stars to keep from blowing themselves apart. […]

  • New exoplanet found very close to its star
    on September 5, 2018 at 8:19 pm

    Using data from NASA's Kepler Space Telescope, an international team has discovered a new exoplanet twice the size of Earth. It orbits its star every six days and is thus very close to it, about 10 times closer than Mercury is to the Sun. […]

  • Telescope maps cosmic rays in Large and Small Magellanic Clouds
    on September 4, 2018 at 3:47 pm

    A radio telescope in outback Western Australia has been used to observe radiation from cosmic rays in two neighbouring galaxies, showing areas of star formation and echoes of past supernovae. […]

  • Veiled supernovae provide clue to stellar evolution
    on September 4, 2018 at 2:32 pm

    At the end of its life, a red supergiant star explodes in a hydrogen-rich supernova. By comparing observation results to simulation models, an international research team found that in many cases this explosion takes place inside a thick cloud of circumstellar matter shrouding the star. This result completely changes our understanding of the last stage of stellar evolution. […]

  • Falling stars hold clue for understanding dying stars
    on September 3, 2018 at 5:59 pm

    An international team of researchers has proposed a new method to investigate the inner workings of supernovae explosions. This new method uses meteorites and is unique in that it can determine the contribution from electron anti-neutrinos, enigmatic particles which can't be tracked through other means. […]

  • Little star sheds light on young planets
    on September 3, 2018 at 2:17 pm

    Astronomers discovered a dense disk of material around a young star, which may be a precursor to a planetary system. Their research could vastly improve models of how solar systems form, which would tell us more about our own place in the cosmos. […]

  • Water worlds could support life, study says
    on August 31, 2018 at 12:35 pm

    The conditions for life surviving on planets entirely covered in water are more fluid than previously thought, opening up the possibility that water worlds could be habitable, according to a new article. […]

  • Unstoppable monster in the early universe
    on August 29, 2018 at 5:32 pm

    Astronomers obtained the most detailed anatomy chart of a monster galaxy located 12.4 billion light-years away. Using the Atacama Large Millimeter/submillimeter Array (ALMA), the team revealed that the molecular clouds in the galaxy are highly unstable, which leads to runaway star formation. […]

  • Stars vs. dust in the Carina Nebula
    on August 29, 2018 at 12:13 pm

    The Carina Nebula, one of the largest and brightest nebulae in the night sky, has been beautifully imaged by ESO's VISTA telescope at the Paranal Observatory in Chile. By observing in infrared light, VISTA has peered through the hot gas and dark dust enshrouding the nebula to show us myriad stars, both newborn and in their death throes. […]

  • Stellar 'swarms' help astronomers understand the evolution of stars
    on August 28, 2018 at 3:47 pm

    Researchers have identified nearly a thousand potential members and 31 confirmed members of stellar associations -- stars of similar ages and compositions that are drifting together through space -- in our own corner of the Milky Way. Their research could help astronomers understand the evolution of stars and the properties of future exoplanet discoveries. […]

  • Stars memorize rebirth of our home galaxy
    on August 21, 2018 at 1:42 pm

    The Milky Way has died once before and we are now in what is considered its second life, according to researchers whose calculations have revealed previously unknown details about our galaxy. […]

  • Hubble paints picture of the evolving universe
    on August 16, 2018 at 6:30 pm

    Hubble and other space and ground-based telescopes, astronomers have assembled one of the most comprehensive portraits yet of the universe's evolutionary history. […]

  • Structurally 'inside-out' planetary nebula discovered
    on August 16, 2018 at 2:19 pm

    Researchers have discovered the unusual evolution of the central star of a planetary nebula in our Milky Way galaxy. The finding sheds light on the future evolution, and more importantly, the ultimate fate of the Sun. […]

  • Study of material surrounding distant stars shows Earth's ingredients 'pretty normal'
    on August 15, 2018 at 11:05 pm

    The Earth's building blocks seem to be built from 'pretty normal' ingredients, according to researchers working with the world's most powerful telescopes. Scientists have measured the compositions of 18 different planetary systems from up to 456 light years away and compared them to ours, and found that many elements are present in similar proportions to those found on Earth. This will have implications for finding Earth-like bodies elsewhere. […]

  • Iron and titanium in the atmosphere of an exoplanet
    on August 15, 2018 at 5:05 pm

    Exoplanets can orbit close to their host star. When the host star is much hotter than our sun, then the exoplanet becomes as hot as a star. The hottest 'ultra-hot' planet was discovered last year. A team has now discovered the presence of iron and titanium vapors in the atmosphere of this planet. This detection was made possible by the surface temperature of this planet, which reaches more than 4,000 degrees. […]

  • In neutron stars, protons may do the heavy lifting
    on August 13, 2018 at 3:36 pm

    A new study suggests that the positively charged particles may have an outsize influence on the properties of neutron stars and other neutron-rich objects. […]

  • Pairs of small colliding galaxies may seed future stars
    on August 9, 2018 at 6:45 pm

    In a new study, astronomers show how gas expelled in the merger of two small galaxies can linger across vast distances for billions of years, where it may eventually feed gas to more massive galaxies to make new stars. […]

  • Ultrahot planets have starlike atmospheres
    on August 9, 2018 at 6:45 pm

    An unusual kind of star-planet hybrid atmosphere is emerging from studies of ultrahot planets orbiting close to other stars. […]

  • VLA detects possible extrasolar planetary-mass magnetic powerhouse
    on August 3, 2018 at 2:33 pm

    Astronomers have detected a possible planetary-mass object with a surprisingly powerful magnetic field some 20 light-years from Earth. It can help scientists better understand magnetic processes on stars and planets. […]

  • Astronomers blown away by historic stellar blast
    on August 2, 2018 at 5:08 pm

    Observations from the Gemini South and other telescopes in Chile played a critical role in understanding light echoes from a stellar eruption which occurred almost 200 years ago. Gemini spectroscopy shows that ejected material from the blast is the fastest ever seen from a star that remained intact. […]

  • Pair of colliding stars spill radioactive molecules into space
    on July 30, 2018 at 4:03 pm

    Astronomers have made the first definitive detection of a radioactive molecule in interstellar space: a form, or isotopologue of aluminum monofluoride (26AlF). The new data -- made with ALMA and the NOEMA radio telescopes -- reveal that this radioactive isotopologue was ejected into space by the collision of two stars, a tremendously rare cosmic event that was witnessed on Earth as a 'new star,' or nova, in the year 1670. […]

  • Einstein's general relativity confirmed near black hole
    on July 30, 2018 at 1:01 pm

    Observations made with ESO's Very Large Telescope have for the first time clearly revealed the effects of Einstein's general relativity on the motion of a star passing through the extreme gravitational field very close to the supermassive black hole in the center of the Milky Way. This long-sought result represents the climax of a 26-year-long observation campaign using ESO's telescopes in Chile. […]