The writer and director explains how he evolved the character of Mark Zuckerberg in the sort-of sequel to “The Social Network.”

© Left, Columbia Pictures; right, The New York Times

Aaron Sorkin’s sort-of sequel to the 2010 “Social Network” dramatizes a whistle-blowing case at Facebook. Here’s what to know.

© Leah Gallo/Sony Pictures

Aaron Sorkin’s latest movie is about how social-media platforms like Facebook have rewired our brains and the larger world.

Margaret Hamilton, the first female programmer hired to work on the space project at M.I.T., was 90.

© NASA/Alamy