Carl Sagan was an American astronomer, astrophysicist, cosmologist and author. If that doesnâ€™t ring a bell, remember the "Pale Blue Dot" speech many of you have seen on the internet? He wrote it. But what a lot of people donâ€™t know is that Sagan had a deep interest in India and Hindu mythology. In fact, he came here and even made a video, where he explained various concepts of the universe and mirrored them in the tenets of Vedic thought. Itâ€™s a little deep, but worth the watch.