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    Category Astronomy/Space

    Death of a Star reveals Midsize Black Hole lurking in a Dwarf Galaxy

    November 11, 2022, Categories  Astronomy/Space

    at2020neh_hst-500.jpg
    Astronomers discovered a star being ripped apart by a black hole in the galaxy SDSS J152120.07+140410.5, 850 million light years away. Researchers pointed NASA’s Hubble Space Telescope to examine the aftermath, called AT 2020neh, which is shown in the center of the image. Hubble’s ultraviolet camera saw a ring of stars being formed around the nucleus of the galaxy where AT 2020neh is located. (Credit: NASA, ESA, Ryan Foley/UC Santa Cruz)

    An intermediate-mass black hole lurking undetected in a dwarf galaxy revealed itself to astronomers when it gobbled up an unlucky star that strayed too close...

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    Red-Supergiant Supernova: Secrets of an Earlier Universe

    November 10, 2022, Categories  Astronomy/Space

    Four images of supernova exploding
    Panels A-D (clockwise from upper left) show several different stages of the supernova: the location of the host galaxy after the supernova faded, the three images of the host galaxy and the supernova at different phases in its evolution, the three different faces of the evolving supernova, and the different colors of the cooling supernova. Photo credit: Wenlei Chen, NASA

    Detailed telescope images help scientists learn more about the Universe two billion years after the Big Bang. An international research team led by the University of Minnesota Twin Cities has measured the size of a star dating back 2 billion years after the Big Bang, or more than 11 billion years ago...

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    Huge Extragalactic Structure found Hiding behind the Milky Way

    November 10, 2022, Categories  Astronomy/Space

    Huge extragalactic structure found hiding behind the Milky Way
    False-color Z (blue), J (green), and Ks (red) image of a region corresponding to the galaxy group/cluster candidate. The red dashed circle delimits the six arcmin radius central area, the green lines indicate the two long-slit positions and the red squares show the five galaxies observed with F2. In the right panels we zoomed the 58 galaxy candidates within the studied area. The length of each box side is 20 arcsec. Credit: arXiv (2022). DOI: 10.48550/arxiv.2210.16332

    A team of researchers with members from Universidad Nacional de San Juan, Universidade Federal do Rio Grande do Sul and Universidad Andres Bello has found evidence of a large extragalactic assembly hiding behind one part of the Milky Way galaxy...

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    Early Planetary Migration Can Explain Missing Planets

    November 9, 2022, Categories  Astronomy/Space

    An illustration of various types of known exoplanets
    An illustration of the variations among the more than 5,000 known exoplanets discovered since the 1990s. (Image courtesy of NASA/JPL-Caltech)

    Model accounts for scarcity of planets with masses between super-Earths and mini-Neptunes. Computer simulations by Rice University scientists and their collaborators are the first to integrate a model of planet formation and evolution that explains two puzzling observations of exoplanets orbiting distant stars: the rarity of worlds about 1.8 times larger than Earth and the near-identical size of adjacent planets in hundreds of planetary systems.

    A new model that accounts for the interplay of forces acting on newborn planets can explain two puzzling observations that have cropped up repeatedly among the more than 3,800 planetary systems catalog...

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