Time travel to the future? Definitely possible. We know how to do it because Einstein showed us the way over a hundred years ago. It’s surprising how few people actually really know about this ...

It's not an abstract question. One of this year's big travel trends is detour destinations – visiting faraway places like Japan, New Zealand and the United Arab Emirates. To get there from the U.S., ...

NOVA: Do you think that backwards time travel will ever be possible? Hear Sagan via RealAudio Sagan: Such questions are purely a matter of evidence, and if the evidence is inconsistent or ...