Wednesday, 29 August 2012

CHINA ANTRACTIC ASTRONOMY BASED IN ACTICE SEARCH FOR ALIEN LIFE

Chinese astronomers are actively searching for Earth-like planets using survey instruments in Antarctica, as they believe efforts to seek an extra-solar planet that harbors
life will soon be rewarded.Chinese astronomers installed the first of three Antarctic Survey Telescopes (AST3-1) at Dome Argus, located at the highest elevation on the Antarctic continent, at the beginning of the year. One of its primary missions is to search for extra-solar planets suitable for life.

Antarctica has the best conditions on Earth for astronomical observation, as it has very flat ground, a transparent atmosphere and little turbulence. The ground-based telescopes here will bring us precious information from the universe.

Chinese astronomers now rely on an Iridium satellite phone to give orders to and receive data from their survey instruments in Antarctica, which only allows them to send and receive a small amount of data at a time.

They search through a wide range of main sequence stars, mainly sun-like stars, and then look for planets within a suitable distance around them. Stars that are smaller and darker than the sun, such as dwarfs, are also in their survey scope.





The second AST3 will be installed in Antarctica between late 2013 and early 2014, while the third one will be installed between late 2014 and early 2015. "These telescopes are expected to help us find at least 100 sun-like stars. We will work with Australian scientists to further study the movement of the stars to calculate their size," Wang said.

Chinese scientists are also planning to set up an Antarctic observatory to further boost their research and broaden the search for habitable planets. If approved and included in the 12th Five-Year Plan, the observatory should go into operation by 2020.

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