When Aliens Attack

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.

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Cast

James Lurie

Narrator (voice)

Seth Shostak

Self - SETI Institute

Nick Pope

Self - U.K. Ministry of Defense

B

Brian De Toy

Self - Director of Defense Studies, West Point

Stephen Hawking

Self - Theoretical Physicist (archive footage)

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Paul Springer

Self - USAF Air Command and Staff College

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Travis Taylor

Self - Physicist & Author

B

Bob Boan

Self - Co-Author, Alien Invasion: How to Defend Earth

M

Michael Michaud

Self - Author, Contact with Alien Civilizations

P

Paul Parsons

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