On Tuesday, engineers successfully finished deploying the James Webb Space Telescope's sunshield, seen here during testing in December 2020 at Northrop Grumman in Redondo Beach, Calif. Chris Gunn/NASA hide caption

Planned Parenthood volunteer Sarah Mahoney checks a list of addresses in Windham, Maine to see which door to knock on next. Patty Wight/Maine Public Radio hide caption

Elizabeth Holmes walks into federal court in San Jose, Calif. Nic Coury/AP hide caption

A Hollywood, Calif., classroom sits empty in August 2020. At least 3,229 schools around the U.S. announced they were canceling in-person learning as of Monday evening. Rodin Eckenroth/Getty Images hide caption

Composer Stephen J. Lawrence Courtesy of Cathy Lawrence hide caption

When Dr. Tiffany M. Osborn received her COVID-19 vaccination shortly after vaccines became available in late 2020, she felt hopeful about the pandemic's trajectory. A year later, she's sad and frustrated to see so many COVID patients in the ICU. Matt Miller / Washington University School of Medicine hide caption

Actress Betty White poses for a portrait on the set of the television show "Hot in Cleveland" in 2010. White died at the age of XX. Matt Sayles/AP hide caption