NEW DELHI A century ago, a few adventurous astronomers pointed their telescopes at the skies, observing one of the most famous solar eclipses that helped transform our understanding of the universe forever. The event helped verify Albert Einstein's General Theory of Relativity which underpins critical modern technologies such as the satellite-based Global Positioning System (GPS). The theory is essential for the correct operation of GPS systems, which in turn are relied on in many common applications including vehicle satellite navigation (SatNav) systems, weather forecasting, disaster relief and emergency services. "This observation not only confirmed a fundamental theory of nature, and enhanced our understanding of nature in a great way, but also showed the genius of Einstein," Sudip Bhattacharyya, Associate Professor at Tata Institute of Fundamental Research (TIFR) in Mumbai told PTI. "It was as if, he said something bizarre, made an outlandish theory, and th...