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Thursday, November 1, 2018

Milky Way Forged by Galaxy 'Mega-Merger' 10 Billion Years Ago: Study

The Milky Way's signature halo is mostly stellar rubble from a cosmic collision 10 billion years ago with another galaxy a quarter of its size, a study said.

from NDTV Gadgets - Latest https://ift.tt/2ql689N
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