Gallery: Space Photos of the Week: Codependent Spiral Galaxies Dunno Who They Are Anymore

  • Image may contain Nature Outdoors Universe Space Astronomy Outer Space Nebula Night and Milky Way
    <a href="https://www.nasa.gov/image-feature/goddard/2017/hubbles-glittering-frisbee-galaxy">NASA</a>
    01

    SPoWMarch23-05.jpg

    Spiral galaxies like this one function like a frisbee, spinning into the universe. This one appears oval rather than circular, since you see it from its side.
  • Image may contain Nature Outdoors Scenery and Landscape
    <a href="https://www.nasa.gov/image-feature/jpl/pia21567/the-hills-are-colorful-in-juventae-chasma">NASA</a>
    02

    SPoWMarch23-01.jpg

    This enhanced-color photo shows sand dunes in Mars’ Juventae Chasma canyon, where many hills are half a mile tall.
  • Image may contain Nature Universe Space Astronomy Outer Space Outdoors Starry Sky and Night
    <a href="http://hubblesite.org/news_release/news/2017-12">NASA</a>
    03

    SPoWMarch23-08.gif

    The supermassive black hole, weighing more than one billion suns, was propelled from the center of a far-off galaxy, possibly powered by gravitational waves.
  • Image may contain Moon Universe Space Night Astronomy Outdoors Nature Outer Space and Planet
    <a href="https://www.nasa.gov/feature/jpl/ice-in-ceres-shadowed-craters-linked-to-tilt-history">NASA</a>
    04

    SPoWMarch23-06.gif

    The illumination of Ceres, a dwarf planet, changes based on its axial tilt (its angle as it spins around the sun).
  • Image may contain Universe Space Astronomy Nebula Outer Space Nature and Outdoors
    <a href="https://www.nasa.gov/image-feature/goddard/2017/hubble-spots-two-interacting-galaxies-defying-cosmic-convention">ESA</a>
    05

    SPoWMarch23-10.gif

    These two galaxies (the blue glow on the right, and the smaller one in upper left) interact, influencing each other with gravitational forces. They’ve distorted each other enough so that it’s difficult to tell what each looked like before they started reshaping each other’s structures.
  • Image may contain Light Flare Flame Bonfire Fire Universe Space Astronomy Outer Space and Nebula
    <a href="http://www.eso.org/public/images/potw1712a/">ALMA</a>
    06

    SPoWMarch23-03.jpg

    This image shows glowing dust inside a protocluster, where a massive protostar grows in the stellar nursery.
  • Image may contain Outdoors and Nature
    <a href="https://www.nasa.gov/image-feature/jpl/pia21571/dunes-of-the-southern-highlands">NASA</a>
    07

    SPoWMarch23-09.gif

    Mars’ surface is dotted with sand dunes, including this field in the planet’s Southern hemisphere, composed of crescent-shaped dunes.
  • This closeup taken from 70000 miles away shows the detailed structures of Saturns A ring.
    <a href="https://www.nasa.gov/image-feature/jpl/pia20526/a-resolution">NASA</a>
    08

    SPoWMarch23-04.jpg

    This close-up, taken from 70,000 miles away, shows the detailed structures of Saturn’s A ring.
  • Image may contain Nature Outdoors Soil Mountain and Rock
    <a href="https://www.nasa.gov/image-feature/jpl/pia21568/gullies-in-winter-shadow">NASA</a>
    09

    SPoWMarch23-02.jpg

    This image shows gullies on Mars that have actively formed in the winter, while carbon dioxide frosts the ground.
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