When Aliens Attack

The story

What if an extra-terrestrial force attacked Earth? What might that look like and how will the people of Earth respond? Consulting a cast of world-renowned scientists, survival experts and defense experts, National Geographic explores this frightening scenario. Experts reveal what could motivate alien invaders to attack Earth, and speculate on how the attack might play out, the strategy alien invaders might use, and the most effective ways for humans to respond.

Cast & crew

James LurieNarrator (voice)

Seth ShostakSelf - SETI Institute

Nick PopeSelf - U.K. Ministry of Defense

Brian De Toy

Brian De ToySelf - Director of Defense Studies, West Point

Stephen HawkingSelf - Theoretical Physicist (archive footage)

Paul Springer

Paul SpringerSelf - USAF Air Command and Staff College

Travis Taylor

Travis TaylorSelf - Physicist & Author

Bob Boan

Bob BoanSelf - Co-Author, Alien Invasion: How to Defend Earth

Michael Michaud

Michael MichaudSelf - Author, Contact with Alien Civilizations

Paul Parsons

Paul ParsonsSelf

John Ringo

John RingoSelf - Author, Live Free or Die

Mark Moffett

Mark MoffettSelf - Author: Adventures Among Ants