India will soon launch an advanced communications satellite, put into orbit for the first time by a cryogenic engine developed by its own scientists.
Cryogenic engines are rocket motors designed for fuels that have to be held at very low temperatures to be liquid. They would otherwise be gas.
Officials say that only five countries in the world have this technology.
BBC science reporter Jonathan Amos says a successful launch would be another milestone for India's space programme.
Our correspondent says handling supercold (croygenic) propellants is not easy and the announcement of next week's launch is a significant development for India as an emerging space power.
Source : http://news.bbc.co.uk/2/hi/south_asia/8607939.stm
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