NASA Administrator Bill Nelson, along with Columbia astronaut William McCool’s family representatives Dan Tani, left, Jane Tani second from left, as well as family of Challenger astronaut Judy Resnik, Chuck Resnik, second from right, and Amy Resnik, right, pause for a moment of silence at the Space Shuttle Columbia Memorial during a wreath laying ceremony that was part of NASA's Day of Remembrance, Thursday, Jan. 26, 2023, at Arlington National Cemetery in Arlington, Va. Wreaths were laid in memory of those men and women who lost their lives in the quest for space exploration. Photo Credit: (NASA/Aubrey Gemignani)