During watching of Sunshine (2007) I've noticed flashing face (approximately 49'39"), when crew members were moving on the Icarus I board:
What is it about?
The flashing images were of the Icarus I crew members. While searching Icarus I, Searle comes across the photo of the crew members wearing Hawaiian shirts (similar to the photo of the Icarus II crew members, who were wearing Santa hats).
The similar photos of the two crews hint that what caused the Icarus I from accomplishing its mission is what is happening to the crew of the Icarus II.