Different paint recipes work for different uses. Two art conservators explain how analyzing paints from the past can reveal how they were made - and how best to preserve them.
Cultural ideas are inextricably entwined with the people who do science, the questions they ask, the assumptions they hold and the conclusions they land on.
As many as 10% of enslaved people on St. Croix escaped. Where they went has remained a mystery, but scientists are using new mapping technology to find answers.