Sylvia Earle and Neil deGrasse Tyson talk about the seas and stars. 9 min read This story appears in the November 2017 issue of National Geographic magazine. This interview was drawn from a taping ...

The barge was towed out and anchored in the lee of Nonsuch, and then we settled down to watch sea and sky, wind and barometer—praying for fine weather. The start for the first deep-sea descent ...