The space age started with the launch of first Russian satellite Sputnik 1 on 4 October 1957.Ever since,the rocket powered launch vehicles carried state of the art scientific equipment to explore moon , the sun , solar system and the cosmos. This resulted in designing and fabricating the instruments having more than 6000000 components with reliability greater than 99.9999%. In 1960s man landed on moon and in 1970s the planetary exploration continued the space march. The comet Halley, which orbits the sun in about 76 years was photographed from a distance of about 500 kms in the year 1986. The success of launch and recovery of Space Shuttle made the space just another location in 1980s. This opened a variety of new vistas of science and technology.