During an exciting visit to Columbia University’s Department of Astronomy, I have the opportunity to deliver the 2022 Crotts Radical Hypothesis Lecture. The lectures honor the memory of Arlin Crotts, a brilliant and visionary astrophysicists, whose work and discoveries profoundly influenced many fields of modern astrophysics: From dark matter haloes through light echoes to the lunar exploration.
My lecture offered a vision for a radically different approach to building very large space telescopes: Our Nautilus Space Observatory concept. The lecture was followed by a great discussion with faculty and students.