Stephen Hawking Speaks Out On Space Exploration, Time Travel
Humans must continue exploring space, if only for the romance of it, and time travel should be
possible, but engineers will have to figure out a way to warp space-time to be sure, famed physicist
Stephen Hawking says.
Hawking spoke out on those subjects and others in a Sunday interview with PARADE Magazine to
discuss his new book "The Grand Design" with Caltech physicist Leonard Mlodinow.
On paper, time travel should also be in cards because of Albert Einstein's general theory of relativity,
which allows for the potential to warp space-time so much that a traveler could leave Earth in a rocket and
return home before he or she ever departed, Hawking said. Of course, that means you have to be able to
warp space-time, which is pretty tricky.
"I showed it would require matter with negative energy density, which may not be available," Hawking said.
Hawking also touched on the need for some cosmic perspective, too.
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http://www.space.com/news/stephen-ha...ht-100912.html
you referred to "grand design" that written by hawking
I must say this book is so interesting and wonderful to read!this book talk about some philosophical questions like Why do we exist? Where did the universe come from? Did it require a creator?
read it!
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so I post it here because I think it can be a good suggestion 