Because it faces the other side of earth.
Mare Crisium is illuminated from a few days after the New Moon until a few days after the Full Moon.
The near side of the Moon is the one we see; maria (seas), highlands, craters, and mountains. The far side is much different. The far side is more mountainous, with fewer obvious craters and very few plains or flat areas.
Not any more. There used to be (about 1 billion years ago) but not now.
The Moon is so far away that if you move a few meters, or even kilometers, the direction of the Moon won't change appreciably.The Moon is so far away that if you move a few meters, or even kilometers, the direction of the Moon won't change appreciably.The Moon is so far away that if you move a few meters, or even kilometers, the direction of the Moon won't change appreciably.The Moon is so far away that if you move a few meters, or even kilometers, the direction of the Moon won't change appreciably.
If by "dark side" you the far side, then yes, it's more or less permanent--the moon wobbles a bit, so we actually see something like 53% of its surface over the course of a few months. Note that both sides of the moon receive light from the sun at some point--the side nearest us while the moon is "full", the other side while it is "new"--so it's improper, if traditional, to call the far side "dark".
We are quit far from moon as monn leaves us a few millions kilometres from earth
All the Apollo landings were on the near side as opposed to the far side (a better term than "dark side", since it isn't actually any darker... statistically, it's very slightly lighter than the near side).However, all the missions which involved a landing, plus a few others, did take the astronauts completely around the Moon. Astronauts on Apollo 8, 10, 11, 12, 13, 14, 15, 16, and 17 did get to see the far side of the Moon.
A few have observed the far side of the moon, but only 12 people have ever walked on the moon.
The core of the Moon is not in its centre but offset towards the Earth making the crust thinner on the Earth side so lava was able to reach the surface more easily through cracks created by massive impacts and flooded vast plains. This obliterated all but a few traces of craters in its path leaving huge relatively smooth areas which were once thought to be seas hence the name Mare (or Maria plural) from Latin for sea.
Or did you mean how far has man travelled into space? To the moon (about 250,000 miles) and back a few times
The dark side of the Moon is the side facing Earth, the side we always see.The near side is as dark as asphalt pavement, except during the near-full moon when crystalline back scatter boosts reflection. Amateur astronomers can measure the Moon's albedo during various phases and see the difference on instruments. However, the human eye tends to ignore absolute brightness and notice contrast.Much of this low albedo is due to the widespread basaltic lava out-flow that filled the lower elevations on the near side. Part is due to the nature of collision scattering that has spread tiny fragments of the lava onto brighter, higher areas of the near side.The far side of the moon has a much thicker crust and, in spite of the more intense meteoric bombardment, has retained the brighter color of that crust.Historically, the word "dark" was, among other meanings, a synonym of "unknown". Perhaps you have heard the puzzling phrase "darkest Africa", which just says that the (European) speaker and listener knew nothing about that part of the African continent. In that sense, the far side of the moon was historically described that way.I believe that most readers can understand that the the far side of the Moon has a day/night cycle, just like the near side obviously has, and the Earth has. Therefore, few people spoke of the far side as in perpetual night, but in the old sense, as unknown.
It has no real effect on the moon at all. The only effect is that the rocks and dust lying on the lighted side of the moon become dark for a few hours.