Vice President Mike Pence, left, watches as June Scobee-Rodgers, widow of Challenger Commander Dick Scobee, touches the Challenger memorial during the NASA Day of Remembrance ceremony at Arlington National Cemetery in Arlington, Va., Thursday, Feb. 7, 2019.
Vice President Mike Pence, left, watches as June Scobee-Rodgers, widow of Challenger Commander Dick Scobee, touches the Challenger memorial during the NASA Day of Remembrance ceremony at Arlington National Cemetery in Arlington, Va., Thursday, Feb. 7, 2019. Susan Walsh AP Photo
Vice President Mike Pence, left, watches as June Scobee-Rodgers, widow of Challenger Commander Dick Scobee, touches the Challenger memorial during the NASA Day of Remembrance ceremony at Arlington National Cemetery in Arlington, Va., Thursday, Feb. 7, 2019. Susan Walsh AP Photo