[00:40.18]When we talk about the universe,we mean the earht,the sun,
[00:47.83]the moon and the stars,and the space between them.
[00:55.20]Many of the stars cannot be seen because seen because they are too far away.
[02:12.57]The moon travels round the earth.
[02:45.51]It is our satellite,It is quite near us in space.
[03:15.08]It is only 380,000 kilometers away,and it has been visited by man already.
[05:00.15]So far,no man has travelled farther than the moon,
[05:07.59]but spaceships without people have reachcd other parts of the universe.
[06:46.47]Man-made satellites have been sent up into space by many countries.
[07:43.83]These satellites go round the earth and help us to learn more abot the earth,
[07:54.41]the weather and other things.
[08:24.76]Most countries use these satellites to send and receive messages.
[09:19.23]For example,with their help China can send its TV and radio programmes
[09:28.95]to the other side of the world.
[09:58.41]Foreigon countries can send their programmes to China.
[10:25.08]We can also use satellites to help us
[10:31.14]make telephone calls to foreign countries.
[10:55.99]Our knowledge of the universe is growing all the time,
[11:25.04]Our knowledge grows and the universe develops.
[11:41.07]Thanks to space satellites,
[11:45.02]the world itself is becoming a much smaller place |