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With rising oil prices, there is new urgency in finding a solution to our uncertain energy future. NOVA presents the latest thinking from solar enthusiasts and skeptics as it investigates cutting-edge research developments. SavedByTheSun.com
How the Universe was made, from the Big Bang to the human body.
Black holes are the Universe's ultimate monsters, sucking everything into their super-dense centres.
If humans are ever to reach deep space, there will need to be some revolutionary changes in transport.
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read your comment on a video and well had to say Good Luck to you.