1.   A crescent shape indicates a spacecraft took the picture after it had passed the planet.

2.   Some extraordinarily sharp-eyed observers are just barely able to make out the crescent shape with their naked eyes, but most of us need binoculars or a telescope.

3.   They should be firm, pink and curve into a crescent shape.

4.   Doctors implant two crescent shapes to form a ring around the cornea, a clear window that covers the pupil and iris.

5.   The sky was overcast, but the clouds parted briefly enough for him to make out the outline of the sun in a crescent shape behind the moon.

6.   They control a wide swath of Croatian territory in the Krajina region, bordering Bihac enclave in a crescent shape from the west.