How many stars, are there in the sky ?

Nobody knows how many stars are in the sky. No one knows, either, how the sky extending in all directions from Earth. This is of course the same as saying you do not know how big the universe. With each new telescope larger than the last, astronomers have continued to ensure greater distance. As we penetrate deeper into space, stellar distances.

Some astronomers believe, however, that can measure time through increasingly large telescopes to reach an area where there are no stars. Other astronomers do not see why not be extended without stars in all directions. For most of us it is equally difficult to imagine an end to space or imagine the space filled with stars that are endless and forever. There is even a theory that space can be curved.

the early days, before he had heard much of the heavens and of the science of astronomy, many people believed that the stars do not shine is during the day. The ancient Egyptians believed that the lights were lit every night by the gods, so that heaven could be more beautiful. They believed that the gods leave these flashlights by wires through the holes in the sky, and in the morning, and took them back.

The stars continue to shine all the time, day and night. We see in the day because of the atmosphere around the Earth is divided and diffuse sunlight in a light cover through which the stars are not visible. We can see through the environment, the night, the glow of the stars, because there is sunlight scattered. If there were no atmosphere, we could see the stars during the day and at night. The sun just seems like a clear hard light in a dark sky surrounded by thousands of twinkling stars.

To hide a total of sunlight, you can see the brightest stars and planets whatever happens to be in the sky at the time. When Venus, the brightest of the planets, is at its maximum brightness, you can see in the sky during the day, if you know where to look. It is also true that if we could climb high enough to get on a plane in the main part of the atmosphere, the stars would be visible at any time. The expression means starlight, both day and night.

Even at night, of course, the stars are often hidden from view. Clouds hide very effectively, as well as fog and mist. After traveling a great distance in space, rays of light coming from stars can at the end of the trip, is hidden from our eyes by a thin curtain of clouds above us.

Above the clouds or out through the halo of light around the earth, the stars are always shining. Day and night, in the light of the moon and sun, clear or stormy, which in turn raised constantly. So now, with this study, we can understand why the stars of daylight are not visible all around.