Phobos miners...

These travelers, depicted here by Pamela Lee, have had experience with asteroids and mining there, so their expertise is now being used on Phobos. Could there be crystals like these on Phobos? Water even?

Strangely, Phobos orbits Mars so fast that it outpaces the rotation of the planet. This means it actually moves across the sky rising in the west, because it 'beats' the sunrise.

Four hours later, it has flown across the entire sky and disappears in the east!