U.S. research cruises resume, gingerly.

PHOTO (COLOR): The R/V Sally Ride headed back to sea after the end of a moratorium on U.S. cruises. Many cruises have already been canceled, research schedules have been disrupted, and research cruises look very different from those before the pandemic, with crews and research scaled back. Under UNOLS's new rules, universities now must assess the risks of cruises based on factors such as homeport infection rates and plans for coping with shipboard outbreaks. [Extracted from the article]