While millions of Earthlings watched the "blood moon" total lunar eclipse on March 13-14, the private Blue Ghost spacecraft caught an ultra-rare view of Earth blocking out the sun from the surface of the moon.

When sunlight passes through Earth's atmosphere, blue light scatters more easily while red light travels more directly through the air. During a lunar eclipse, some of the sunlight passes all the way through the Earth's atmosphere and reaches the moon's surface, giving it a subtle glow.