There was that dang moon again, coming between us and the source of life on this planet, the sun. We watched as the moon slid from the upper right of ...

The fundamental phases of matter — solid, liquid, and gas — are well known. But there are many other phases, including ones that emerge when matter is chilled or heated to extreme temperatures.

The moon's last quarter - or final quarter phase will occur at 07:59 a.m. EDT (1159 GMT) on the morning of May 20 for viewers in New York, at which point the moon will be visible a little over 30 ...

Called “Moon Phases,” they show 62 phases of the moon as seen from Earth, 62 phases visible from other viewpoints in space, and one lunar eclipse. Jeff Koons poses with his moon-bound artwork ...