Saturday, March 30, 2013

Pioneer 10 .. First man made mission to leave solar system ..

Pioneer 10-11 spacecraft.jpg 

First space craft to leave the solar system .. Launched in 1972, it crossed the Neptune orbit in 1983 , mission was officially called off in 1997, though signals were received from it till 2003, when it was at a distance of 12 billion kms from earth. It is presumed it is either still travelling at 1,32,000 kms/hour speed into the unknown limits of the universe or may have got caught in some planetary orbit and revolving around it.


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Class discussion on the Coffee supply chain ..

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