Astronomers using observations from the NASA/ESA Hubble Space Telescope and NASA’s Chandra X-ray Observatory have studied how dark matter in clusters of galaxies behaves when the clusters collide. The results, published in the journal Science on 27 March 2015, show that dark matter interacts with itself even less than previously thought, and narrows down the options for what this mysterious substance might be.
The release, images and videos are available on:
http://www.spacetelescope.org/news/heic1506/
Kind regards,
ESA/Hubble Information Centre
The ESO Education and Public Outreach Department
26 March 2015
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19 March 2015: As Hubble enters its 25th year in orbit, with celebrations planned around the world for its anniversary on 24 April 2015, this Hubblecast celebrates the relationship that the telescope will ...
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13 March 2015: The short video competition in celebration of Hubble’s 25th year in orbit has come to an end. Many thanks to all those who sent in their videos.
Now, everyone has ...
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