First Astronomers
2022 Arthur and Hilda Winch Annual Lecture
given by Duane Hamacher, PhD
Planet Earth
International Astronomical Union WGSN
2022 Arthur and Hilda Winch Annual Lecture
given by Duane Hamacher, PhD
IAU WGSN
data and information
IAU headquarter: Paris, Europe
Chair of the Working Group: Berlin, Europe
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