The solar-powered Blue Ghost shut down on Sunday evening (March 16), shortly after the sun set over its lunar locale. The lander watched our star's descent and disappearance over the cratered horizon, capturing the oncoming, killing darkness in a poignant video that Firefly shared with the world today (March 18).

Firefly Aerospace’s Blue Ghost lander fell silent over the weekend, wrapping up two weeks of science experiments for NASA. The end came as the sun set at the moon, no longer providing energy for the lander’s solar panels.