An anonymous reader writes: Indian Space Research Organisation (Isro), on Sunday, successfully tested two indigenous scramjet engines. India has become the fourth country to demonstrate the flight testing of scramjet engine after the US, Russia and European Space Agency. According to a report, the scramjet will bring down the launch cost of weather satellite INSAT-3DR which is a weather forecast system designed for enhanced meteorological observations and disaster warning. The satellite scheduled to be launched in August earlier, but it has been postponed to September.

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Source: Slashdot – ISRO Successfully Test-fires Scramjet Rocket Engine