Ting Wu, HMS professor of genetics, talks about ways scientists are striving to optimize astronauts' physical and mental health—and anticipating the biomedical challenges ahead as humankind considers long-term space travel.

And in this episode's abstract, a study led by Brittany Charlton at HMS and the Harvard T.H. Chan School of Public Health offers reassurance for women and their health care providers about the safety of taking oral contraceptives during or just before pregnancy.