50% of moon is always lit by sun light.When we are in middle of Sun and Moon we see fullmoon(Poorinam). 50% of moon from earth. That is when we are in middle of Sun and Moon we see full moon. 50% of moon is always lit by Sun. read more
The moon travels once around Earth every 29.5 days, and during its journey, it's lit from varying angles by the sun. This movement of the moon around the Earth — and the simultaneous orbiting of Earth around the sun — accounts for the moon's different phases (full moon, quarter moon, etc.). read more
During the full Moon, it’s so bright that it obscures fainter objects in the night sky. Many astronomers put their telescopes away during this phase, and wait for it to go away. When the Moon is highly illuminated, it reflects so much light we can even see it during the day. read more