Stockholm Observatory / University Science Books / University of Leiden / /
IndustryTerm
inverse square law / opaque gas lanes / less accurate algorithm / energy / /
Organization
University of Leiden / /
Person
Heber Curtis / Frank Shu / Christoffel van de Hulst / Harlow Shapley / Alan G. Aversa / Jan Hendrik Oort / Swede Bertil Lindblad / Joshua Barnes / Newton / Amara Graps / /