New Delhi: Astronomers have discovered a violent collision in one of the many debris disks surrounding a newborn star in the constellation of Piscis Austrinus called Fomalhaut. The star is at a distance of only 25 lightyears from the Earth, was formed around 440 million years ago, and is one of the brightest objects in the night sky. It is brighter and more massive than the Sun, and collapsed from a dense clump of dust and gas. There are several belts of leftover material surrounding it. In 2008, scientists first spotted a candidate exoplanet dubbed Fomalhaut b, which now appears to be an expanding cloud of debris, the result of colliding........

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