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.

  • X-ray data may be first evidence of a star devouring a planet
    on July 18, 2018 at 3:33 pm

    An analysis of X-ray data suggests the first observations of a star swallowing a planet, and may also explain the star's mysterious dimming. […]

  • Finding a planet with a 10 year orbit in just a few months
    on July 18, 2018 at 1:25 pm

    To discover the presence of a planet around stars, astronomers wait until it has completed three orbits. However, this effective technique has its drawbacks since it cannot confirm the presence of planets at relatively long periods. To overcome this obstacle, astronomers have developed a method that makes it possible to ensure the presence of a planet in a few months, even if it takes 10 years to circle its star. […]

  • Supersharp images from new VLT adaptive optics
    on July 18, 2018 at 12:22 pm

    ESO's Very Large Telescope (VLT) has achieved first light with a new adaptive optics mode called laser tomography -- and has captured remarkably sharp test images of the planet Neptune and other objects. The MUSE instrument working with the GALACSI adaptive optics module, can now use this new technique to correct for turbulence at different altitudes in the atmosphere. It is now possible to capture images from the ground at visible wavelengths that are sharper than those from the NASA/ESA Hubble Space Telescope. […]

  • Astronomers find a famous exoplanet's doppelganger
    on July 17, 2018 at 1:48 pm

    A new planet has been imaged, and it appears nearly identical to one of the best studied gas-giant planets. But this doppelganger differs in one very important way: Its origin. One object has long been known: the 13-Jupiter-mass planet beta Pictoris b, one of the first planets discovered by direct imaging, back in 2009. The new object, dubbed 2MASS 0249 c, has the same mass, brightness, and spectrum as beta Pictoris b. […]

  • Could gravitational waves reveal how fast our universe is expanding?
    on July 12, 2018 at 3:44 pm

    An new study finds black holes and neutron stars are key to measuring our expanding universe. […]

  • Colorful celestial landscape
    on July 11, 2018 at 1:31 pm

    New observations show the star cluster RCW 38 in all its glory. This image was taken during testing of the HAWK-I camera with the GRAAL adaptive optics system. It shows RCW 38 and its surrounding clouds of brightly glowing gas in exquisite detail, with dark tendrils of dust threading through the bright core of this young gathering of stars. […]

  • Rocky planet neighbor looks familiar, but is not Earth's twin
    on July 10, 2018 at 4:28 pm

    Last autumn, the world was excited by the discovery of an exoplanet called Ross 128 b, which is just 11 light years away from Earth. New work has for the first time determined detailed chemical abundances of the planet's host star, Ross 128. […]

  • Even phenomenally dense neutron stars fall like a feather
    on July 4, 2018 at 5:53 pm

    Astronomers have given one of Einstein's predictions on gravity its most stringent test yet. By precisely tracking the meanderings of three stars in a single system -- two white dwarf stars and one ultra-dense neutron star -- the researchers determined that even phenomenally compact neutron stars 'fall' in the same manner as their less-dense counterparts, an aspect of nature called the 'Strong Equivalence Principle.' […]

  • The Gaia Sausage: The major collision that changed the Milky Way galaxy
    on July 4, 2018 at 3:20 pm

    Astronomers have discovered an ancient and dramatic head-on collision between the Milky Way and a smaller object, dubbed the 'Sausage' galaxy. The cosmic crash was a defining event in the early history of the Milky Way and reshaped the structure of our galaxy, fashioning both its inner bulge and its outer halo, the astronomers report in a series of new papers. […]

  • Beam of light from first confirmed neutron star merger emerge from behind sun
    on July 2, 2018 at 3:11 pm

    Astronomers had to wait over 100 days for the sight of the first of confirmed neutron star merger to reemerge from behind the glare of the sun. […]

  • First confirmed image of newborn planet caught with ESO's VLT
    on July 2, 2018 at 1:40 pm

    SPHERE, a planet-hunting instrument on ESO's Very Large Telescope, has captured the first confirmed image of a planet caught in the act of forming in the dusty disc surrounding a young star. The young planet is carving a path through the primordial disc of gas and dust around the very young star PDS 70. The data suggest that the planet's atmosphere is cloudy. […]

  • Astronomers observe the magnetic field of the remains of supernova 1987A
    on June 29, 2018 at 2:26 pm

    For the first time, astronomers have directly observed the magnetism in one of astronomy's most studied objects: the remains of Supernova 1987A (SN 1987A), a dying star that appeared in our skies over thirty years ago. In addition to being an impressive observational achievement, the detection provides insight into the early stages of the evolution of supernova remnants and the cosmic magnetism within them. […]

  • Physicists set limits on size of neutron stars
    on June 26, 2018 at 3:33 pm

    How large is a neutron star? Previous estimates varied from eight to sixteen kilometers. Astrophysicists have now succeeded in determining the size of neutron stars to within 1.5 kilometers by using an elaborate statistical approach supported by data from the measurement of gravitational waves. […]

  • Recipe for star clusters
    on June 25, 2018 at 11:26 pm

    Clusters of stars across the vast reaches of time and space of the entire universe were all created the same way, researchers have determined. […]

  • Nearly 80 exoplanet candidates identified in record time
    on June 21, 2018 at 4:19 pm

    Scientists have analyzed data from K2, the follow-up mission to NASA's Kepler Space Telescope, and have discovered a trove of possible exoplanets amid some 50,000 stars. The scientists report the discovery of nearly 80 new planetary candidates, including a particular standout: a likely planet that orbits the star HD 73344, which would be the brightest planet host ever discovered by the K2 mission. […]

  • Old star clusters could have been the birthplace of supermassive stars
    on June 21, 2018 at 2:10 pm

    Astrophysicists may have found a solution to a problem that has perplexed scientists for more than 50 years: why are the stars in globular clusters made of material different to other stars found in the Milky Way? […]

  • Best evidence of rare black hole captured
    on June 18, 2018 at 6:18 pm

    Scientists have been able to prove the existence of small black holes and those that are super-massive but the existence of an elusive type of black hole, known as intermediate-mass black holes (IMBHs) is hotly debated. New research shows the strongest evidence to date that this middle-of-the-road black hole exists, by serendipitously capturing one in action devouring an encountering star. […]

  • Hunting molecules to find new planets
    on June 18, 2018 at 3:30 pm

    It's been impossible to obtain images of an exoplanet, so dazzling is the light of its star. However, astronomers have the idea of detecting molecules that are present in the planet's atmosphere in order to make it visible, provided that these same molecules are absent from its star. Thanks to this innovative technique, the device is sensitive to the selected molecules, making the star invisible and allowing the astronomers to observe the planet. […]

  • Distant moons may harbor life
    on June 15, 2018 at 1:36 am

    Researchers have identified more than 100 giant planets that potentially host moons capable of supporting life. Their work will guide the design of future telescopes that can detect these potential moons and look for tell-tale signs of life, called biosignatures, in their atmospheres. […]

  • Short gamma-ray bursts do follow binary neutron star mergers
    on June 14, 2018 at 5:51 am

    Researchers have confirmed that last fall's union of two neutron stars did in fact cause a short gamma-ray burst. […]

  • Trio of infant planets discovered around newborn star
    on June 13, 2018 at 2:19 pm

    Two independent teams of astronomers have uncovered convincing evidence that three young planets are in orbit around an infant star known as HD 163296. Using a new planet-finding strategy, the astronomers identified three discrete disturbances in a young star's gas-filled disk: the strongest evidence yet that newly formed planets are in orbit there. […]

  • The disc of the Milky Way is bigger than we thought
    on June 7, 2018 at 3:27 pm

    A team of researchers suggests that if we could travel at the speed of light it would take us 200,000 years to cross the disc of our Galaxy. […]

  • Evolution of nebula surrounding symbiotic star R Aquarii
    on June 7, 2018 at 3:27 pm

    Scientists have published a detailed study of the evolution of the nebula surrounding the symbiotic star R Aquarii. The study employed observations from telescopes at the Roque de los Muchachos Observatory, La Palma, and Chile taken over the course of more than two decades. […]

  • One of the most massive neutron stars ever discovered
    on June 7, 2018 at 3:27 pm

    Using a pioneering method, researchers have found a neutron star of about 2.3 Solar masses -- one of the most massive ever detected. […]

  • System with three Earth-sized planets discovered
    on June 7, 2018 at 3:27 pm

    Today marks the discovery of two new planetary systems, one of them hosting three planets with the same size of the Earth. […]

  • Astronomers find a galaxy unchanged since the early universe
    on June 7, 2018 at 2:10 pm

    Researchers confirm the first detection of a relic galaxy with the Hubble Space Telescope. […]

  • Discovery of clusters of galaxies in the early universe
    on June 7, 2018 at 2:09 pm

    Until now astronomers thought that these phenomena occurred 3,000 million years after the Big Bang, but this new result shows that they were already happening when the Universe was 1,500 million years old. […]

  • Globular clusters 4 billion years younger than previously thought
    on June 4, 2018 at 3:24 pm

    Globular clusters could be up to 4 billion years younger than previously thought, new research has found. […]

  • Cosmic collision lights up the darkness
    on May 31, 2018 at 3:46 pm

    Though it resembles a peaceful rose swirling in the darkness of the cosmos, NGC 3256 is actually the site of a violent clash. This distorted galaxy is the relic of a collision between two spiral galaxies, estimated to have occured 500 millions years ago. Today it is still reeling in the aftermath of this event. […]

  • Large Magellanic Cloud: A crowded neighborhood
    on May 30, 2018 at 3:31 pm

    Glowing brightly about 160,000 light-years away, the Tarantula Nebula is the most spectacular feature of the Large Magellanic Cloud, a satellite galaxy to our Milky Way. A new image reveals a cosmic landscape of star clusters, glowing gas clouds and the scattered remains of supernova explosions. This is the sharpest image ever of this entire field. […]