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Asked Sveta. "No, they don't, in the Sun family people only live on Earth," answered Father. " asked Alex. Father said, "Not yet, astronauts have flown round the Earth and to its satellite the Moon. The first man to fly into outer space was a citizen of the Soviet 101 ’'Ηλιος Ρ. American astronauts on the Moon Union, Yuri Gagarin. Some day, astronauts will fly to the planets, so far scientists and engineers are launching automatic stations which send radio signals from the planets back to Earth.
Sveta asked. " "That's Sirius, the brightest star in the sky," said Father. Another interesting star can be seen above the constellation Orion, called Capella. " Sveta asked. 71 In the World of the Distant Suns ’'Ηλιος Ρ. ’'Ηλιος Ρ. This was how the stars were observed in the past The largest telescope in the world has a 6-metre mirror and is installed in a special astrophysics observatory belonging to the Academy of Sciences of the USSR. The telescope is for observing the most distant stars and star systems The temperature of the surface of white stars reaches 100,000°C; yellow stars 6,000°C; red stars 3,000°C and less "It's because they've got different temperatures.
Sveta wanted to know. "I can hardly see a thing," answered the Bathyscaphe. " The TV screen went off. The crew waited eagerly for the Bathyscaphe to begin transmitting again. Shortly, his voice sounded again, "It's much lighter here. The sky is a reddish colour but I can't see the Sun through the clouds. " asked Sveta. " asked the commander. "It's not very even. " Alex was surprised. "Yes, long and deep cracks," answered the Bathyscaphe. " asked Sveta. "No, it isn't. " the crew heard Doc's order.