TONIGHT: How To See Moon’s Dark Side
Skywatchers, take note: Tonight (May 23) and tomorrow night will offer excellent opportunities to observe the so-called “dark side” of the moon.
The new moon occurred on Sunday evening (May 20), marked by an annular eclipse of the sun as the moon passed in front of it. The moon has now moved to the east of the sun, but is still mostly lit from behind. Only a slim crescent on the moon’s east side is in full sunlight.