John Harmon1992
Harmon observes Mercury again when the southern hemisphere is favourably presented, helping confirm a south-polar radar-bright feature.
United States · Science / Astronomy. Chronological records rendered directly from the World History Database.
Harmon observes Mercury again when the southern hemisphere is favourably presented, helping confirm a south-polar radar-bright feature.
Slade participates in follow-up radar observations that strengthen evidence for reflective deposits near Mercury's south pole.
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