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Published online 31 May 2007 | Nature | doi:10.1038/news070528-7
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Space telescope spies dark matter
Triangulation technique spots object at the edge of our Galaxy.
Astronomers have used telescopes on Earth and in space to nail the precise position of a mysterious, dark object at the outer edge of our Galaxy. The work could be an important step in understanding so-called dark matter — mysterious material that makes up about a quarter of our Universe.
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