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galactic halo

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galactic halo

In astronomy, outer, sparsely populated region of a galaxy, roughly spherical in shape and extending far beyond the bulk of the visible stars. In our own Galaxy, the halo contains the globular clusters, and may harbour large quantities of dark matter.



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This adds a nice example in the local universe to the growing evidence that galactic halos are built up from the accretion of dwarf satellite galaxies," says study coauthor Eric Peng of the Johns Hopkins University in Baltimore.
Galactic cannibalism strikes again. (Astronomy) by Science News
This type of particle might inhabit a spherical region known as the galactic halo, encompassing our galaxy.
Letters by Science News
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