Why, when we look at the stars, do we study... memories? How is a black hole formed? What are the ingredients of stars? Why are neutron stars the lighthouses of Space? What is the relationship between gold and the collision of stars? How many of the applications we use daily do we owe to space technology? Travel to the Universe and discover its secrets with our guide, the man who introduced us to the enchantment of the stars, the scientist who combined astrophysics and cosmology with charismatic storytelling and fairy tales, Dionysis Simopoulos. Like a brilliant comet, Dionysis Simopoulos passed through the lives of many of us with his work. Today, now that he is no longer here with us, I feel a melancholy, on the other hand, I also feel a touch of emotion that washes away the sorrow: this is how I imagine him, as if he returned "home," to the stars. Elias Magklinis