Book Review: Extraterrestrial and Interstellar – “Have We Been Visited?”

Avi Loeb, a Harvard astrophysicist with a storied career as the longest-serving chair of the university’s Astronomy Department (2011–2020), has sparked intense debate with his bold claims about extraterrestrial visitation. Raised on a farm in Beit Hanan, Israel, Loeb’s early curiosity about the cosmos, nurtured by philosophy and science, propelled him to become a leading theorist on black holes and the early universe. Now heading the Galileo Project, which seeks empirical evidence of extraterrestrial technology, Loeb brings his contrarian spirit to Extraterrestrial: The First Sign of Intelligent Life Beyond Earth (2021) and Interstellar: The Search for Extraterrestrial Life and Our Future in the Stars (2023). These books offer a thought-provoking, scholarly investigation into the question “Have we been visited?”