Time travel has long been a topic of science fiction, filled with thrilling possibilities and mind-bending problems. The most ...

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That seven-hour round trip always gave me plenty of time to reflect ... really showed off the bike’s strengths as a proper travel machine. Even in the tight, technical switchbacks of the ...

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Firefly originally intended to develop a spacecraft based on the design of Israel's Beresheet lander, which was the first ...

Slideshows ...

The Route 66 Car Museum in Springfield, Missouri isn’t just another roadside attraction with a few dusty jalopies parked ...

Ronald Mallett, professor emeritus at the University of Connecticut, is most known for his theory on how time travel is ...

There are limits to the theory, though. Mallett said that, if a time travel machine were ever to be built, the machine could be turned on for a period of time, and people in the future could ...

Plus Edward Ashton’s “The Fourth Consort” and Daryl Gregory’s “When We Were Real.” ...