Jan. 01, 21

Volume 53.1 contains reports from 11 chapters, an essay on the need for lawyers in space exploration, articles on celebrating 40 years of membership for women in The Explorers Club, a review of tracking Chinese-built dam water levels along the Mekong River, a discussion about modeling for the Covid-19 virus, an introduction to the Explorers Club 50 publication, a memory of Chuck Yeager, a Backwards Glance about those of the first class of women members who are no longer with us, and more.