A radio te;escope uses radio waves instead of visible light. It collects radio waves in dish antennas connected to electronic systems and computers. A network of antennas yields higher resolution and accuracy to scan radio sources in space. Un fortunately a country that can afford all this is highly industrialised. Radio nise due to industries and electronic media interferes with radio telescopes. Less developed countries do not have this problem, but lack of infrastructure, and of course absence of scientists prevents them from doing this job. This is where India scores! Inspite of all the Industrial development it is possible to find relatively quiet places. This is what Govind Swaroop did. He found such a quiet place at narayangaon near pune and put up a network of many antennas each with a diameter of 45 meters, using a novel and economic concept.

Setting up this giant Meterwave Radio Telescope (GMRT) was itself a great achievement. We can feel proud that Swaroop has done it. Besides GMRT helped discoer several radio sources. Swaroop has also obtained independent evidence for the Big Bang theory. For all this work Swaroop recieved the prestigious'Fellowship of the Royal Society of London'.

Puerto Rico construction was completed on the world's largest radar Radio telescopes a fined reflector instruent 1,000 ft in diameter. The bowl for the large wire mesh reflector caos blasted out of a limestone mountain. The reflector is supported by cables strong accross 1000 ft. diamter steel ring anchored into rock. At three points outside the perimeter of the ring concrete towers have been erected on mountain ridges.

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