Because we can only see the part of the moon that is lit by the sun. The moon may appear to get bigger and smaller, but that's because it orbits the earth so only some of it can be seen. It takes four weeks for the moon to do a full orbit ( a month)
The moon does not emit its own light. You can only see the Moon when the Sun's light reflects off of it. During a "New Moon" the Moon is in between the Sun and Earth and so the lit surface of the Moon is facing away from the Earth. So you can't see it.
Sometimes during a New Moon, the Moon can be seen very faintly. This is because of reflected "Earthshine". This is where sunlight has reflected off the Earth, then off the Moon and back to Earth. However, during a partial or total Solar Eclipse (which coincides with the New Moon), you can readily see the Moon as it crosses the Sun's surface. You cannot see features on the face of the Moon's surface at this time, however you can see features on the edge (called the limb) quite well. We also commonly call the Moon "New" when it is just past the exact point in its orbit when it is nearest to the direction of the Sun. It is visible then as a crescent of light just after Sunset. Some amateur astronomers strive to set records for seeing the earliest New Moon. "The record for an early sighting of a lunar crescent, with a telescope, is 12.1 hours after New Moon; for naked-eye sightings, the record is 15.5 hours from New Moon. These are exceptional observations and crescent sightings this early in the lunar month should not be expected as the norm." (from http://aa.usno.navy.mil/faq/docs/crescent.php )
Because of the sun light reflecting off of it.
Update:
Normally new moons are invisible since the moon is between the Earth and Sun. However during the rare solar eclipses the new moon will be visible as a silhouette.
No matter what the phase of the Moon, the Moon is only above the horizon for half of the time. When the Moon is above the horizon, you won't be able to see it if there are obstructions such as trees or buildings, or on a cloudy day. That's pretty obvious.
If the Moon is up and the sky is clear, you can see the Moon. The only time that you would have difficulty seeing the Moon would be during the daylight hours for a day or two either side of the "new" moon, when it is too close to the Sun to be distinct.
The new moon is invisible to observers on Earth because it is not giving off any sunlight - therefore it cannot be seen.
yes!
There's only one difference between the sky seen from the Earth and the sky seen from the moon. The sky seen from the Earth has a moon in it, and the sky seen from the moon has an Earth in it. Other than that, exactly the same objects in the same patterns are seen from both places.
A new moon can't be seen in the night sky because the sun is shinning on the other side. Remember the moon is rotating.
Since Earth has about 4 times the diameter of the Moon, the angular diameter of Earth, as seen from the Moon, is about 4 times larger than the angular diameter of the Moon, as seen from Earth. Since the Moon's angular diameter as seen from here is about half a degree, that would make Earth's angular diameter about 2 degrees.If you wish, you can look up more exact figures and do more precise calculations, but it is hardly worth the trouble, since there is some variation in the distance from Earth to Moon anyway.
The Moon always presents the same side of itself to Earth, thus nobody had seen the other side of the Moon (i.e. the other half) until a rocket orbited the Moon.
mercury
Sure. When it's on the opposite side of the Earth, for example.
The moon's phases can be seen from the earth, but not by an observer on the moon. Similarly, the earth's phases can be seen from the moon, but not by an observer on the earth.
False the new moon cant be seen from earth at all.
the moon is always in the sky, but due to the earths rotation it cant be seen during the day.
There's only one difference between the sky seen from the Earth and the sky seen from the moon. The sky seen from the Earth has a moon in it, and the sky seen from the moon has an Earth in it. Other than that, exactly the same objects in the same patterns are seen from both places.
No. At certain times the moon can be seen in the early morning or late afternoon.
The moon can only be seen at night because the sun's rays reflect off of it's surface. But during the day, the moon is much more dull than the sky and the sun by comparison.
No. The other half of the moon is called 'the invisable'
The moon can be seen anywhere from Earth.
No Chinese, or other, man made structure can be seen from the moon. This is a popular but mistaken belief. The re are sections that can be seen from about 100 km up but the moon is 2,000 times that distance.
A new moon can't be seen in the night sky because the sun is shinning on the other side. Remember the moon is rotating.
because its the earths shadow. it cant be seen fom earth ..