Marco Rinaldo Fedele Bersanelli is an Italian astrophysicist and academic, professor of Astrophysics at the University of Milan. "Surely this is one of the big questions that are becoming more and more important due to the fact that today we have evidence, this now yes, experimental, of the fact that most of the stars have planetary systems and therefore we have billions and billions of planets only in our galaxy, hundreds of billions of planets. On the other hand, we must not overlook, and even this is not an object of research, the absolutely very fine peculiarities of planet Earth, and it is good to hold planet Earth dear to us, precisely because there are very many aspects for which we will hardly find a planet identical to the Earth. And anyway the possibility that life arises, even if there was a planet identical to the Earth, we don't know how to give it a probability, we are still very ignorant about it. These are fascinating questions that take us to the next few decades, I believe, and with the surprise, however, of grasping at least at this point that this fact has occurred. This is something that I hope more and more will be appreciated in its depth, in its wonder." Ready to send your message to other worlds? www.starbottle.space