Gallery: Space Photos of the Week: Galaxies That Pass Gas Together, Stay Together

  • Image may contain Universe Space Astronomy Outer Space and Nebula
    <a href="http://m.esa.int/spaceinimages/Images/2017/04/Cosmic_pairing">NASA</a>
    01

    SPoW-April21-04.jpg

    These two very different spiral galaxies are also very close together—only 7,000 light-years away—with a faint stream of neutral hydrogen gas between them. This is unusual with galaxies near each other, which are normally deformed with long tidal tails.
  • Image may contain Universe Space Astronomy Outer Space and Nebula
    <a href="https://www.nasa.gov/mission_pages/chandra/the-arrhythmic-beating-of-a-black-hole-heart.html">NASA</a>
    02

    SPoW-April21-05.jpg

    In this elliptical galaxy, a supermassive black hole beats once every five to ten million years, emitting bursts of energetic particles and creating shock waves jetting across the Centaurus galaxy cluster.
  • Image may contain Universe Space Astronomy Outer Space Planet Globe Sphere Earth Art and Painting
    <a href="https://www.nasa.gov/image-feature/jpl/pia21389/the-edge-of-jupiter">NASA</a>
    03

    SPoW-April21-06.jpg

    This image shows textures in Jupiter’s atmosphere, taken over the planet’s cloud tops, just 12,400 miles away from the planet.
  • Image may contain Universe Space Astronomy Outer Space and Nebula
    <a href="https://www.nasa.gov/image-feature/goddard/2017/hubbles-cosmic-bubbles">NASA</a>
    04

    SPoW-April21-07.jpg

    This image shows threads of gas wrapped around an extremely large, bright star, tens of times more massive than our sun.
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    <a href="http://m.esa.int/spaceinimages/Images/2017/04/Lake_MacKay_Australia">ESA</a>
    05

    SPoW-April21-01.jpg

    This satellite image shows Lake MacKay, a 110,000-square-mile salt lake in Australia. It's classified as an ephemeral lake, as it only appears after rainfall, if at all.
  • Image may contain Soil Nature Outdoors Sand Animal Reptile Lizard Concrete Slate and Ground
    <a href="https://www.jpl.nasa.gov/spaceimages/details.php?id=PIA21596">NASA</a>
    06

    SPoW-April21-03.jpg

    This crater on Mars was once covered by lava from the volcanic region of Elysium, which has now solidified and cracked on its surface.
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