That the Earth orbits the Sun isn’t a contentious observation, but this statement of fact wasn’t always so widely accepted. Four centuries ago, it was so controversial, the Catholic Church considered it a heresy. Now, fast-forward to the 21st-century debate about extraterrestrials and you’ll see something similar: those who hypothesize that they exist are treated as apostates. Why so? To discuss, Oksana is joined by Avi Loeb, Professor of Science at Harvard University and author of ‘Extraterrestrial: The First Sign of Intelligent Life Beyond Earth’.
