Jupiter (late September 2009)
Coz sky is black. If moon appear in day when sun is shines then moon will be not bright simple. EDITED : ... What grade are you in? That a horrible explanation. The moon is so bright at night because at night The Sun and The moon is Aligned so that the Sun's light would hit the moon and which bounce off the moon through the earth. Thus, The moon is bright at night.
Since the Moon moves across the sky about 12 degrees per night, there will be no bright star near the Moon "every night". Last night (September 11, 2009) the Moon was fairly close the Betelgeuse, the red giant star at the shoulder of Orion. Tonight, September 12, 2009, the Moon will be very near the planet Mars. Both have a similar reddish color to them.
As I write this (October 2010) Jupiter is the bright planet beneath the moon. The moon rises about an hour later each night on its monthly journey around the earth. Jupiter generally marches westward across the sky ecliptic a few degrees per night.
The moon
they appear bright be cause the light from the sun is hitting the moon and planets to make them look bright.
night side
earth
Neptune, the furthest planet from the sun.
The moon has none so it's very clear, but on the bright side of the moon the sun is very bright and you have a hard time seeing stars.
When you are seeing more of the lighted portion of the moon each night, the moon is waxing. When the lighted portion is diminishing, it is waning.
the moon is not a planet. The moon is a natural satelite that orbits the earth. It has no light but it will emit the sun's light at night.
The Sun.