7,409 likes, 66 comments - astro_jessica on March 12, 2026: "Another day on the @iss brings the departure of another vehicle, the last of our 3 cargo vehicles on the US Operating Segment (USOS). Today we bid farewell to the @northropgrumman Cygnus NG-23 cargo vehicle, named after our late colleague NASA astronaut Willie McCool. As I watched Cygnus disappear over the horizon, I took a moment to reflect and honor Willie, and all of the STS-107 crew, who honorably gave their lives in their effort to advance science and space exploration. Godspeed S.S. William “Willie” C. McCool, thank you for your service!".