The lunar calendar has long been associated with women's menstrual cycles, but a new study has officially revealed the two are intrinsically linked. Researchers from France and the US analyzed ...

Have you ever noticed that the duration of the lunar cycle (28 days) corresponds with a woman’s menstrual cycle? It is also ...

The moon has an 18.6-year cycle during which the exact places it rises and sets on the horizon waxes and wanes. At each end of that cycle is a major lunar standstill, also called a lunistice ...

Lunar New Year — also commonly called Chinese New Year — marks the start of the new year based on lunar calendars, or monthly cycles of the moon's phases. The lunar new year starts with the ...

But these dates are different each year, because the Chinese calendar is based on the moon's 12 phases. Each phase cycle is approximately 29 days, and the full calendar is about 354 days long.