A candle lighting and wreath placement at Marshall Space Flight Center is among the events set for Thursday.

NASA observed its annual Day of Remembrance Thursday to commemorate the astronauts killed in the Apollo 1 and space shuttle Challenger and space shuttle Columbia accidents.

NASA astronaut Suni Williams has retired after 27 years of service and a career defined by endurance, leadership, and firsts in space. She spent 608 days in orbit, completed nine spacewalks, and twice ...

NASA astronaut Suni Williams has retired after a legendary 27-year career that included 608 days in space, nine spacewalks, ...