In honor of the members of the NASA family who lost their lives while furthering the cause of exploration and discovery for the benefit all, the agency hosted its annual Day of Remembrance Thursday, Jan. 25, 2024. Traditionally held on the fourth Thursday in January each year, NASA Day of Remembrance commemorates the crews of Apollo 1 and space shuttles Challenger and Columbia.

“Our annual Day of Remembrance honors the sacrifice of the NASA family who lost their lives in the pursuit of discovery,” said NASA Administrator Bill Nelson. “While it is a solemn day, we are forever thankful that our fallen heroes shared their spirt of exploration with NASA, our country, and the world. Today, and every day, we embrace NASA’s core value of safety as we expand our reach in the cosmos for the benefit of all humanity.”

Learn more about the Day of Remembrance.

Image Credit: NASA/Keegan Barber