EVANSTON, Illinois, Aug. 13 (TNSjou) -- Northwestern University posted the following news release:

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Cosmic breadcrumb trail reveals hidden dark matter

Astronomers discover first globular cluster stellar stream outside the Milky Way

* Discovery was hidden in the Hubble Space Telescope's archival data

* Astronomers used stream as a tool for mapping dark matter in a low-mass galaxy

* Team expects future telescop . . .

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