Stephen Hawking

Aliens: "'Are we alone?' This is an eye-popping journey from the moons of Jupiter to a galaxy perhaps not so far, far away in search of alien life. We'll see what aliens might look like, question what it means to be alive and calculate the odds of making 'contact'"--Container. Time Travel: "'Is time travel possible?' Hawking explores the world's favorite scientific 'what if?' warping the very fabric of time and space as he goes. From killing your...