Astronomer Chris Impey discusses the future of space travel, sex in space and the connection between science and Buddhism. Originally broadcast May 11, 2015.
Susan Monarez, the ousted director of the CDC, testified on Capitol Hill Wednesday that the health secretary pressured her to rubber stamp vaccine policies without reviewing scientific evidence.
NPR speaks with Debra Houry, the CDC's former chief medical officer, about her decision to leave her post and her concerns over Health Secretary Robert F. Kennedy Jr.'s vaccine decisions.