• Star Clusters

    Photo Release: Stormy seas in Sagittarius Photo Release: A galaxy in bloom Science Release: Hubble sees atmosphere being stripped from Neptune-sized exoplanet Photo Release: Hubble views a bizarre cosmic quartet Photo Release: Lost in space Science Release: Hubble observes chaotic dance of Pluto’s moons Science Release: Merging galaxies break radio silence Science Release: Retirement in the suburbs Photo Release: Celestial fireworks celebrate Hubble’s 25th anniversary Science Release: Death of giant galaxies spreads from the core
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  • Picture of the Week

    The long goodbye

    The long goodbye

    A dying star’s final moments are captured in this image from the NASA/ESA Hubble Space Telescope. The death throes of this star may only last mere moments on a cosmological timescale, but this star’s demise is still quite lengthy by our standards, lasting tens of thousands of years! The star’s agony has culminated in a wonderful planetary nebula known as NGC 6565, a cloud of gas that was ejected from the star after strong stellar winds pushed the star’s outer layers away into space. Once enough material was ejected, the star’s luminous core was exposed and it began to produce…

  • Our Solar System

    Pluto’s moons The chaotic spin of Pluto’s moon Nix Ganymede’s magnetic field Hubble observation of aurorae on Ganymede Artist’s illustration of aurorae and Ganymede Plot of the rocking of Ganymede’s magnetic field Cutaway of the moon Ganymede Three moons and their shadows parade across Jupiter — Comparison of beginning and end of sequence, including annotations Three moons and their shadows parade across Jupiter — beginning of event, annotated Three moons and their shadows parade across Jupiter — comparison of beginning and end of sequence, without annotations Three moons and their shadows parade across Jupiter — comparison of beginning and end of sequence, with annotations Three moons and their shadows parade across Jupiter — beginning of event