NASA's Day of Remembrance is an annual observance that honors the brave individuals who lost their lives in the pursuit of space exploration, specifically the crews of Apollo 1, Challenger, and Columbia. This solemn tribute is marked by ceremonies and moments of reflection at various NASA centers, such as the Kennedy Space Center in Florida and the Johnson Space Center in Houston, where public commemorations take place. Participants can also engage in virtual ceremonies streamed online, visit local space museums featuring memorials, and educate themselves about the missions and individuals being honored. The day serves as a reminder of the inherent risks of spaceflight and emphasizes NASA's commitment to safety and mission success. Through these observances, NASA not only pays tribute to those who sacrificed their lives but also reinforces its dedication to improving safety protocols and spacecraft design in the future.