NEW DELHI: During the run-up to the launch of the Chandrayaan-3 mission, a delegation of Nasa scientists, on a visit to the Isro headquarters, was "astonished" to see the sophisticated technologies Indian space scientists has developed "at such low cost" to go to the Moon's south pole and wanted India to sell them to the US, Isro chairman S Somanath said on Sunday.Addressing students at an event...