In this episode of StarTalk, Neil deGrasse Tyson hosts a fan favorite edition of cosmic queries with comedian Godfrey. They discuss a range of topics related to space and astronomy, including the possibility of particles traveling faster than light and going back in time, the limitations of the human brain in understanding itself, and the concept of time as viewed from a higher dimension. They also touch on the legacy of Carl Sagan and his impact on science communication. The conversation is lighthearted and humorous while still exploring complex scientific concepts.
The speakers also delve into the topic of black holes, including the volume of the event horizon and the idea that a black hole could be a portal to another universe. They discuss the possibility of aliens visiting Earth, with the conclusion being that they likely have not due to the vast distances involved and the fact that they would only be able to observe events from the past.
The conversation also touches on a range of other topics, including the weight of a hand, the possibility of the Earth having rings if the moon were blown apart, and the idea of comets becoming dried-up asteroids. They also discuss the controversies of naming celestial bodies such as planets, asteroids, moons, and stars.
Overall, the podcast provides an informative and entertaining discussion on various aspects of space and astronomy, including the mysteries of the universe and the frontiers of biology. The speakers express excitement for the solutions that may be discovered in the coming years and provide interesting insights into the expanding horizon of the universe and how more light will be revealed as time goes on.