`color{green}(โข)` The small pieces of rocks which move around the sun are called meteoroids.
`color{green}(โข)` Sometimes these meteoroids come near the earth and tend to drop upon it.
`color{green}(โข)` During this process due to friction with the air they get heated up and burm.
`color{green}(โข)` It causes a flash of light.
`color{green}(โข)` Sometimes, a meteor without being completely burnt, falls on the earth and creates a hollow.
`color{green}(โข)` Do you see a whitish broad band, like a white glowing path across the sky on a clear starry night?
`color{green}(โข)` It is a cluster of millions of stars.
`color{green}(โข)` This band is the Milky Way galaxy (Figure 1.6).
`color{green}(โข)` Our solar system is a part of this galaxy.
`color{green}(โข)` In ancient India, it was imagined to be a river of light flowing in the sky.
`color{green}(โข)` Thus, it was named Akash Ganga.
`color{green}(โข)` A galaxy is a huge system of billions of stars, and clouds of dust and gases.
`color{green}(โข)` There are millions of such galaxies that make the Universe.
`color{green}(โข)` It is difficult to imagine how big the universe is. Scientists are still trying to find out more and more about it.
`color{green}(โข)` We are not certain about its size but we know that all of us โ you and I belong to this universe.
`color{green}(โข)` The small pieces of rocks which move around the sun are called meteoroids.
`color{green}(โข)` Sometimes these meteoroids come near the earth and tend to drop upon it.
`color{green}(โข)` During this process due to friction with the air they get heated up and burm.
`color{green}(โข)` It causes a flash of light.
`color{green}(โข)` Sometimes, a meteor without being completely burnt, falls on the earth and creates a hollow.
`color{green}(โข)` Do you see a whitish broad band, like a white glowing path across the sky on a clear starry night?
`color{green}(โข)` It is a cluster of millions of stars.
`color{green}(โข)` This band is the Milky Way galaxy (Figure 1.6).
`color{green}(โข)` Our solar system is a part of this galaxy.
`color{green}(โข)` In ancient India, it was imagined to be a river of light flowing in the sky.
`color{green}(โข)` Thus, it was named Akash Ganga.
`color{green}(โข)` A galaxy is a huge system of billions of stars, and clouds of dust and gases.
`color{green}(โข)` There are millions of such galaxies that make the Universe.
`color{green}(โข)` It is difficult to imagine how big the universe is. Scientists are still trying to find out more and more about it.
`color{green}(โข)` We are not certain about its size but we know that all of us โ you and I belong to this universe.
