India's Giant Metrewave Radio Telescope, GMRT based at Khodad near Pune and NASA's Chandra X-ray telescope have played an important role in making a rare discovery about the universe.<br/><br/>For the first time, it has been shown that the central dense cores of certain kinds of special galaxies are the source that high energy particles like electrons need to create relic radio emissions that are seen in clusters of galaxies. This has been an outstanding problem in understanding the physics of galaxy clusters that make up the large-scale structure of the universe.<br/><br/>Galaxies are often found in large clusters. Many such clusters also contain large sources of radio emission called 'relics', which can be observed easily with telescopes like the GMRT. However, the source that the high energy electrons needed to produce these relics has not been understood so far.<br/><br/>GMRT observatory Dean, Professor Yashwant Gupta, has said, the contribution of GMRT to this new discovery is significant and it is a tribute to the capability of our observatory. GMRT is operated by the National Centre for Radio Astrophysics, Pune, and in the last decade or so, it has been in the forefront of many exciting new discoveries about our Universe.