Cosmic Particles welcomes Philip Coppens

In this episode Dr Meg and Philip Coppens will be discussing his book 'The Ancient Alien Question.' In this book Philip Coppens discusses questions like: Have we been visited by extraterrestrial beings? Did these "ancient aliens" contribute to the birth of human civilization? Do our ancient monuments contain evidence of their presence?

This is a rerun of the October 26, 2011 episode of Cosmic Particles, as Dr Meg is out of the country, spreading love and light.