The explosion showered debris over the Bay of Bengal The launch of India's heaviest communications satellite has failed after the rocket carrying it veered off course and exploded. The Insat-4C satellite weighed more than 2,000kg and was expected to significantly enhance India's telephone and business communications. It came a day after a test-fire of India's longest-range nuclear-capable ballistic missile ended in failure. The Agni-III surface-to-surface missile crashed into the Bay of Bengal. Setback Television pictures showed the Insat-4C satellite being launched from the Sriharikota Space Research Centre in the southern state of Andhra Pradesh. Seconds after lift-off, the satellite's...