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. 2023 Sep 13;9(37):eadh4302. doi: 10.1126/sciadv.adh4302

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Fig. 4. — The location of the LCROSS impact is marked with a bold cross and became continuously shadowed at θ ≈ 2.2° (about 0.9 Ga ago). Color contours are the boundaries of PSRs and are labeled with values of θ. Gray contours are topography relative to a sphere in 100-m height intervals. X and Y are coordinates in polar stereographic projection.