Guests gather to commemorate NASA’s Day of Remembrance on Thursday, Jan. 22, 2026, at the Kennedy Space Center Visitor Complex in Florida. The annual event honors the crews of Apollo 1 and space shuttles Challenger and Columbia, as well as other astronauts who lost their lives in the pursuit of spaceflight. Marking the 40th anniversary of the Challenger tragedy, NASA Kennedy and the Astronauts Memorial Foundation, which was founded after the shuttle Challenger accident in 1986 to honor the sacrifices of fallen astronauts, hosted this year’s ceremony.