STARS AND THE SOLAR SYSTEM

Stars are celestial bodies that emit light of their own. Our sun is also a star.

The phases of the moon occur because we can see only that part of the moon which reflects the light of the Sun towards u s.

Moon is the natural satellite of the Earth. Some planets also have natural satellites.

Venus is the brightest planet in the night sky.

Artificial satellites are used for weather forecasting, long distance communication and remote sensing.

Jupiter is the largest planet of the solar system.

Artificial SatellitesYou must have heard that there are a number of artificial satellites which are orbiting the Earth. You might wonder how artificial satellites are different from natural satellites. Artificial satellites are man-made. They are launched from the Earth. They revolve around the Earth much closer than earth’s natural satellite, the moon. India has built …

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Meteor ShowersWhen the Earth crosses the tail of a comet, swarms of meteors are seen. These are known as meteor showers. Some meteor showers occur atregular intervals each year. You can find the time of their appearance from a scientific magazine or from the internet.

Some meteors are large and so they can reach the Earth before they evaporate completely. The body that reaches the Earth is called a meteorite.Meteorites help scientists in investigating the nature of the material from which the solar system was formed.

At night, when the sky is clear and the moon is not there, you may sometimes see bright streaks of light in the sky . These are commonly known as shooting stars, although they are not stars. They are called meteors. A meteor is usually a small object that occasionally enters the earth’satmosphere. At that …

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