Neil Answers Superfan Questions – Moonmoons, Gravitons, and More!
Summary

In this episode of StarTalk, the hosts answer questions from their Patreon subscribers about various topics related to astronomy and space exploration. They discuss the shape of alien spacecraft, the possibility of a moon having its own moon, and the philosophical dilemma of determining one's location in space. They also delve into the accuracy of science in Star Wars, the stability of planetary orbits in binary star systems, and the potential for an Alpha Centauri expedition. The hosts provide accessible explanations of complex scientific concepts, making this episode a great introduction to the show for new listeners.

The hosts also discuss the Proxima Century star system, which has an exoplanet called Proxima B that is Earth-like in size. They explain that current technology limits us to chemical rockets, and the only plan currently in place is Project Starshot, which involves launching micro-satellites with light sails and accelerating them with lasers to reach Alpha Century in 20 years. They also touch on the topic of aging and whether it is too late for someone to pursue a career in astrophysics or astronomy, and the answer is that there is no cut-off time and plenty of time for someone to pursue their academic interests.

Overall, this episode provides interesting insights into space science and astronomy, with the hosts providing accessible explanations of complex scientific concepts. The Patreon questions add an interactive element to the episode, making it engaging for listeners who want to learn more about the universe.