International Women's Day first emerged from the activities of labour movements at the turn of the twentieth century in North America and across Europe. Since those early years, International Women's Day has assumed a new global dimension for women in developed and developing countries alike.
The shadowed portion is entirely hidden from view. The first quarter and third quarter moons (both often called a half moon), happen when the moon is at a 90 degree angle with respect to the earth and sun. So we are seeing exactly half of the moon illuminated and half in shadow.
This process allows people to observe the moon's phases. The full moon is the brightest phase, while the new moon is the phase when little or no bright part of the moon is visible. Other bright objects that are easily visible in the night sky include Venus, Jupiter, Mars and Saturn. Learn more about Astronomy