: the point or stage in a period of uniform circular motion, harmonic motion, or the periodic changes of any magnitude varying according to a simple harmonic law to which the rotation, …

Distinct phases may be described as different states of matter such as gas, liquid, solid, plasma or Bose–Einstein condensate. Useful mesophases between solid and liquid form other states of …

Sep 25, 2025 · We describe how the Moon looks with the eight Moon phases, or shapes: If you have looked into the night sky, you may have noticed the Moon appears to change shape …

When I was in my early teens I went through a phase of only ever wearing black. The phases of the moon are the regular changes in its shape as it appears to us on earth.

Look up Phase, phase, or phases in Wiktionary, the free dictionary.

The seasons of the year, spring, summer, fall, and winter, are also phases. The planet Venus has phases, like the moon: Galileo showed that the phases of Venus meant it must go around the …

The phases of the Moon are the different ways the Moon looks from Earth. As the Moon orbits around the Earth, the half of the Moon that faces the Sun will be lit up.

Since phases are angles, any whole full turns should usually be ignored when performing arithmetic operations on them. That is, the sum and difference of two phases (in degrees) …

Dec 4, 2025 · With our 2025 Moon Phase Calendar, you'll find the current Moon phase for tonight—plus, all the phases of the Moon for each day of the month.

New Moon and Full Moon calendar with precise times and simulation of the Moon phase today. When is the next Full Moon?