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    Hubble Spots a Starry Spiral

    nasa2 hours ago

    Hubble Spots a Starry Spiral

    ESA/Hubble & NASA, D. Thilker and the PHANGS-HST Team In this new picture from NASA’s Hubble Space Telescope, a spiral galaxy glittering with star clusters is the center of attention. NGC

    space.com2 hours ago

    Our Milky Way's 'Zone of Avoidance' holds a galaxy supercluster with 30,000 trillion times the sun's mass

    An enormous supercluster made up from over 20 individual galaxy clusters hiding behind our dusty Milky Way is even larger than astronomers had thought, affecting the motion through space of

    Smaller Than Earth Habitability Model (STEHM): The Lower Size Limit for Atmosphere Retention in the Habitable Zone

    Astrobiology3 hours ago

    Smaller Than Earth Habitability Model (STEHM): The Lower Size Limit for Atmosphere Retention in the Habitable Zone

    STEHM flow chart. Green hexagons are input parameters that are calculated by ExoPlex. Orange hexagons are input parameters set within STEHM. Yellow stadiums are components that are explored by STEHM.

    Moon Record Analysis Challenges Impact Origin Of Earth’s Water

    Astrobiology3 hours ago

    Moon Record Analysis Challenges Impact Origin Of Earth’s Water

    An Impactor Strikes Earth’s Global Ocean — Grok via Astrobiology.com A long-standing idea in planetary science is that water-rich meteorites arriving late in Earth’s history could have delivered a major

    Dew And Frost Do Not Serve As Water Sources For Rock-dwelling Organisms In The Dry Valleys Of Antarctica

    Astrobiology3 hours ago

    Dew And Frost Do Not Serve As Water Sources For Rock-dwelling Organisms In The Dry Valleys Of Antarctica

    Location of all three MET stations, Lake Fryxell (LF), Explorer Cove (EC) and Marble Point (MP). The site investigated by Büdel et al. (2008) is marked as B. Note the

    The Hydrogen, Methane And Ammonia Biosphere On Early Earth

    Astrobiology3 hours ago

    The Hydrogen, Methane And Ammonia Biosphere On Early Earth

    A schematic illustration of the geological and geochemical characteristics of the pre-biotic Earth. The important characteristics include: the nearly-completely ocean-covered Earth; the continental crust mostly submerged in the oceans; the

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