Question

what are the factors that allow better astronomical observations in Antarctica than any other place 0n the earth​

Answer 1

High on the Antarctic plateau, Dome C boasts atmospheric conditions that are even calmer—and thereby clearer—than those at the South Pole. “A telescope there would perform as well as a much larger one anywhere else on Earth,” says Will Saunders, astronomer at the Anglo-Australian Observatory.

Answer 2

September 15, 2004 -- A small unmanned observatory high on the Antarctic plateau provides the best star-viewing site on Earth, according to research published today in Nature.