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Astrophysics

Blown away by cosmic rays

X-ray data reveal that our Galaxy is shedding part of its gas, a phenomenon previously associated only with much more active star-forming galaxies. So what is driving the process in the Milky Way?

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Figure 1: Blown away?

M. BAUER/MPE

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Breitschwerdt, D. Blown away by cosmic rays. Nature 452, 826–827 (2008). https://doi.org/10.1038/452826a

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