Stephen Hawking

And you'll never guess what he wants to do for a living.
But it doesn't have to be the end of humankind.
Acclaimed scientist says it may be disastrous to reach out and touch aliens.
The famed physicist reveals a new idea for how information might be able to escape a black hole.
The technology could help people with disabilities speak.
Nothing against these brilliant kids, but...
"Autonomous weapons will become the Kalashnikovs of tomorrow."