fluorescein stain visualized with UV.
Fluorescein staining
fluorescein staining
they appear bright be cause the light from the sun is hitting the moon and planets to make them look bright.
Farther away!
um really bright
you might have aids =(
light on the sun
because of the suns bright light shining on the surface of the moon
Earth's nearest neightbor
It depends on its intrinsic brilliance and its distance from the observer
Ecliptic
The light so bright.