Today is our Day of Remembrance. As we push forward to the Moon with our Artemis missions, it is vital that we stay vigilant and remember those who made the ultimate sacrifice in the name of science and discovery. Image descriptions: 1. The Apollo 1 crew stands together for a group portrait wearing their flight suits. From left to right: Virgil I. Grissom, Edward H. White, Roger B. Chaffee. Credit: NASA. 2. The STS-51L crew pose for a group portrait and smile in their light blue flght suits. From left to right: Mission Specialist Ellison S. Onizuka, Pilot Michael J. Smith, Payload Specialist Christa McAuliffe, Commander Francis R. “Dick” Scobee, Payload Specialist Gregory B. Jarvis, Mission Specialist Judith A. Resnik, Mission Specialist Ronald E. McNair. Credit: NASA 3. The STS-107 crew posing for a portrait in their orange spacesuits. Crew seated in front, from left, are: Astronauts Rick D. Husband, mission commander; Kalpana Chawla, mission specialist; and William C. McCool, p...