In the sci-fi thriller "War of the Worlds," Earthlings fight for survival against alien invaders.
But is an obliterating attack from advanced, space faring armada just fantasy, or could it be a scenario based on hard science?
Find out in Alien Invasion as some of America's top scientific experts come together to explore the effect on mankind that contact with an advanced alien race could have.
In this one-off special learn how astrophysicists, weapon designers, military strategists, biologists and anthropologists are preparing for a real alien invasion and the plan for mankind to fight back.
Take part here
Find out what's on with our monthly programme updates.
Tim Shaw & Jeep® embarked on a road trip across the UK this month, taking in some of the most breath-taking locations.
Get up close with amazing creatures.
The official stream of Nat Geo TV.
The official UK page for Nat Geo TV.
Cookies are very small text files that are stored on your computer when you visit some websites.
Strictly necessary and performance