The science of finding habitable planets beyond our solar system and the prospects for establishing human civilization away from our ever-less-habitable planetary home. Planet Earth, it turns out, may not be the best of all possible worlds—and lately humanity has been carelessly depleting resources, decimating species,

Astronomer Chris Impey, author of the new book “Worlds Without End: Exoplanets, Habitability, and the Future of Humanity” and a professor at the University of Arizona, discusses the vast possibilities of extraterrestrial human habitation, why imagination is an important form of scientific speculation, and why humans’ i

Today we connect with Chris Impey, a University Distinguished Professor in the Department of Astronomy at the University of Arizona. Chris’s astronomy research interests lie in observational cosmology – the process of using telescopes and other devices to study the far-reaching structure and evolution of the universe.

Last month there was quite a stir concerning a US intelligence report based on 144 UFO sightings by US military personnel. At just nine pages in length, it was a fairly scant report, but it did make for some interesting reading nonetheless. Chris Impey, Professor and Deputy Head of the Department of Astronomy at the Un

After the US government released its long-awaited report on unidentified aerial phenomena, we explore the cultural history and scientific taboo around UFOs. And three months after rebels killed the president of Chad in central Africa, we talk to experts about the balance of power there. Welcome to The Conversation Week

In this episode of Talk Nerdy, Cara is joined by Dr. Chris Impey, astrophysicist and author of “Einstein’s Monsters: The Life and Times of Black Holes.” They discuss black holes’ rich history of discovery, from Galilean telescopes to spectroscopy to gravitational wave detection.