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Faraway Galaxy Cluster Nets Dark Matter Evidence

Scientists have concluded the checkout period for NASA's Hubble Space Telescope and now are revealing images showcasing the power of the much-improved observatory. This zoom into galaxy cluster Abell 370 brings us to a Hubble image that features a prominent arc near the right-hand side of the picture. This is the gravitational lens effect from a background galaxy. Astronomers believe this distortion is caused by dark matter that holds together as many as 1,000 galaxies and intergalactic hot gas.
  • Release Date
    September 9, 2009
  • Science Release
    Hubble Opens New Eyes on the Universe
  • Credit
    NASA, ESA, and the SM4 ERO Team

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Last Updated
Mar 28, 2025
Contact
Media

Claire Andreoli
NASA’s Goddard Space Flight Center
Greenbelt, Maryland
claire.andreoli@nasa.gov