What should we study? The eighteenth-century luminary and poet Alexander Pope had this to say on the subject: “Know then thyself, presume not God to scan; The proper study of mankind is man ” (An Essay on Man, 1733). He was not alone in this opinion.

In the summer of 2008 the Chinese were worried about rain. They were set to host the Summer Olympics that year, and they wanted clear skies. Surely clear skies, they must have thought, would show the world that China had arrived.

This week we feature an interview with Abigail Foerstner about her new book, James Van Allen: The First Eight Billion Miles (University of Iowa Press, 2007). Dr. Foerstner teaches news writing and science writing at Northwestern University’s Medill Sch...