Faraway Galaxy Cluster Nets Dark Matter Evidence

About this video
Duration: 26 seconds

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.


Tags
Astronomical, Exotic, Galaxies, Galaxy Clusters, Gravitational Lensing, Hubble Telescope

Credits

Credit: NASA, ESA, and the SM4 ERO Team

Publication: September 9, 2009


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