On December 12, the Athens College Junior High School Astronomy Club and the Physics Thinking Club had the honor to host a lecture by astrophysicist Mr. Pavlos Kastanas '00. Besides being a graduate of our School, Mr. Kastanas, is one of the most popular astrophysicists in our country, as through his YouTube channel ("Astronio") he has managed to spread the science of astrophysics to the general public. His speech to our students was titled "The Harmony of the Universe". Students asked questions to Mr. Kastanas about the science of astrophysics and the development of Artificial Intelligence, sparking a very interesting scientific discussion. Finally, students were divided into two groups and played a quiz, answering questions related to the science of astronomy.