STS-107 Mission Specialist Laurel B. Clark (NASA) On this Day of Remembrance, February 1, 2013, NASA will mark the 10th anniversary of the STS-107 Columbia accident with a wreath-laying ceremony at the astronaut memorial in Arlington National Cemetery, paying tribute to the lost crews of Columbia, Challenger and Apollo 1, as well as other space … Continue reading "From One Laurel to Another: a Letter from Columbia"