The comet C/2017 K2 has offered a spectacular celestial show for stargazers and astronomers as it hurtled past Earth this week. In its closest approach to our planet, which was on July 14, the comet was about 270 million kilometres away. Now, while the comet may have crossed its closest point to Earth, the celestial show is not over yet. It is expected that the comet is now on its journey towards the Sun and may appear brighter when it gets…