XMM-Newton helps revise distance to outer spiral arms
By layer8 · 2026-07-03 · 4 points · 0 comments
https://www.esa.int/Science_Exploration/Space_Science/XMM-Newton/XMM-Newton_helps_revise_distance_to_outer_spiral_arms
By layer8 · 4 points · 0 comments · on Hacker News, read on BetterNews.
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