Fifteen years of unprecedented discovery came to an official end last week when NASA bid a final and touching farewell to its Opportunity rover. The announcement was marked by profound, even personal, loss for those who followed the rover’s journey across the Martian landscape. Outpourings of sorrow for the fallen explorer prevailed as at any funeral. I’ve seen few remembrances, however, as expressive or poignant as one shared in LEGO form by Stefan Schindler.

With her mission over, Opportunity appears to be guided by Curiosity, who alone remains to carry on the mission. Awaiting Opportunity is her departed twin, Spirit, and Sojourner, the first to land and travel on the red planet. There is a subtle, almost heartbreaking glance between Opportunity and Spirit. As if a few more discoveries would have made her inevitable end a little easier. It’s a small but incredibly eloquent scene, both honoring the history of the Mars program while conveying its current hope.