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Stars and solar physics

Stars and solar physics

New evidence reveals ancient collision of the Milky Way

31 Oct 2018
Gaia
An all-sky view of the Milky Way and neighbouring galaxies, based on measurements of nearly 1.7 billion stars by the Gaia Space Observatory. (Courtesy: ESA)
The halo of the Milky Way mainly comprises the remnants of a pre-formed structure of stars that merg

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Tim Wogan is a freelance science writer based in the UK
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