Since ancient times, the moon was very mysterious to people.Why is it replaces the Sun shines all around, but not uniformly every day and changed during the month?Shadow appears after Moon passed the stage of the full moon, and every day an area of night lights all reduced.In the end, you can see quite a thin crescent, and then for a few months and it disappears.But not for long.The mysterious nature of moonlight found its explanation. moon shines at night , not as bright as the sun in the afternoon, but still making things very apparent.It is not a star and does not emit light itself, but may reflect the glow of someone else's.If one side of the Earth illuminated by bright sunligh
t, the other is in shadow, but moon reflects the light that falls on it, and thereby illuminating the earth's surface. moon revolves around the Earth, and that, in turn, turns around the sun, so their relative positions change daily.When all the half moon illuminated by the Sun, visible from Earth - the full moon.If moon is directly between the Sun and Earth, it reflects nothing and can not see it, it's a new moon. moon has no atmosphere, which helped to keep her more or less constant temperature.When one of her half illuminated by the Sun over the past two weeks, the surface there is heated to greater than 100 degrees Celsius.Then comes a moonlit night, when some part of the light side of the moon does not fall at all, then the temperature there drops to -200 degrees Celsius.An observer from Earth seem that it moon illuminates the earth night , but also the converse is also true.When the surface of the Moon misses the sun, the light reflected from the Earth, just as it illuminates.There is a well-known expression: the dark side of the moon.It does not mean that half of the satellite can not reflect light.The reason is that moon also rotates on its axis, so it is always facing the Earth is only one of his party.People have long wondered what is on the other side of the moon, but when space flights have been developed, managed to photograph the image of the reverse side.Despite the fact that it seems that all the mysteries of the Moon humanity resolved on a moonlit night people still possessed a special mood, forcing to forget about all that is known about the science of the space object.