On hearing the word sky, a blue sheet appears in front of the eyes. But have you ever wondered why the sky is blue? And when ...

Before going dark, Blue Ghost captured some striking images of lunar sunset and last week's total ... greenish gray as the Sun sank in the sky. According to Firefly, NASA will analyze these ...

The solar-powered Blue Ghost went dark on Sunday evening (March ... that measures how dust behavior changes after sunset." "Ghost Riders in the Sky" was part of a wave of private moon exploration.

which Blue Ghost caught Friday before concluding its mission and going dark. It's unclear when the lander took its pictures of lunar sunset, which Firefly waited to share via X (formerly Twitter ...