Stephen Hawking's Alien Warning

The world-famous astrophysicist theorizes that alien life will not be friendly.
0:43 | 04/26/10

Coming up in the next {{countdown}} {{countdownlbl}}

Coming up next:

{{nextVideo.title}}

{{nextVideo.description}}

Skip to this video now

Now Playing:

{{currentVideo.title}}

Comments
Related Extras
Related Videos
Video Transcript
Transcript for Stephen Hawking's Alien Warning

This transcript has been automatically generated and may not be 100% accurate.

{"id":10474793,"title":"Stephen Hawking's Alien Warning","duration":"0:43","description":"The world-famous astrophysicist theorizes that alien life will not be friendly.","url":"/Technology/video/stephen-hawking-alien-theory-10474793","section":"Technology","mediaType":"default"}