Stars travel at terrific speeds! They look stationary. It is something like the feeling you get when you look at a kite fly against the background of the moon for a minute or so. The kite seems to move fast, compared to the 'stationary' moon, which, in fact, is travelling at a speed of more than 3,600 km per hour!
                        Quasars which look like stars, are far away, but emit strong radio waves. They are racing away from us at speeds exceeding 1,000,000,000 km per hour!
                         Stars are not cool. Even the polar star has a surface much hotter than that of the sun. The temperature of the sun, at its core is about 14,000,000 degrees celsius!



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