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Extra resources for A book about Stars and Planets - To Be Read to Children
Me too," said Alex. THE PLANETS The purpose of this last section is to provide children with further details concerning the planets of the Solar System. For many centuries people studied the planets with the naked eye, then, beginning in the 17th century, they used telescopes which have now become highly sophisticated. The new age in the study of the planets has lasted for less than two decades, in which study of the planets has been carried out by means of automatic space stations which have already visited not only the Moon, but also Venus and Mars.
Some of the pictures showed the whole Earth, others only 87 The Earth Is Our Spacecraft ’'Ηλιος Ρ. part of it. Their Father explained that the Earth had been photographed from the Moon, from artificial earth satellites and from spacecraft. Most of all the children liked the picture where the Earth was seen in the Moon's sky as a blue sphere. " asked Alex. "Nothing," answered Father. " Sveta was troubled. 88 "Don't worry, the Moon won't fall on Earth. It won't fall because it doesn't hang over the Earth but moves quickly round it," answered Father.
Said Father at home. "We do, we do, he's Ray," the children cried. "Right, a ray of the Sun," said Father. " asked Sveta. "Of course they do," answered Father. "Rays come rushing towards us from every star. And 74 they tell scientists many interesting things. It is from the rays that we learn which stars are hotter. " Alex asked in wonder. "It takes very long," said Father. "It takes a ray more than eight years to get here from Sirius, for instance. You were not even born when the ray which arrived here today set out from Sirius.