Rodney Scott checks racks of ribs as they cook on July 3, 2018 in Charleston, S.C. The Washington Post/Getty Images hide caption

Voters enter a polling station at the Zion Baptist Church on Jan. 5 in Marietta, Ga. Black churches have often played a role in mobilizing their congregants to vote. Sandy Huffaker/AFP via Getty Images hide caption

Justice, Justice Thou Shalt Pursue: A Life's Work Fighting for a More Perfect Union, by Ruth Bader Ginsburg and Amanda Tyler University of California Press hide caption

Useful Delusions: The Power and Paradox of the Self-Deceiving Brain, by Shankar Vedantam and Bill Mesler Norton hide caption

Four-year-old Lois Copley-Jones, the photographer's daughter, takes part in a livestreamed broadcast of "PE With Joe" on March 23, 2020, in Newcastle-under-Lyme, England. The popular fitness series ended Friday. Gareth Copley/Getty Images hide caption

School desks make up an exhibit called "Pandemic Classroom" at the United Nations in New York City. Each of the 168 seats represents 1 million children living in countries where schools have been entirely closed almost a year. Timothy A. Clary/AFP via Getty Images hide caption

Kevin Chen, an assistant professor at the Massachusetts Institute of Technology, envisions a time when his insect-sized drone could be used as a search and rescue robot — to find survivors in disaster debris that bigger drones couldn't reach. Kevin Yufeng Chen hide caption