Morning Overview on MSN

Warp drives could allow time travel and NASA is studying them

Warp drives have long lived in the realm of science fiction, but the underlying physics that inspired them is very real and ...
NPR

What does it take to get time travel right in movies?

This month marks 40 years since Michael J. Fox, as Marty McFly, jumped into a souped-up DeLorean and went back in time, putting his very future existence at risk. (SOUNDBITE OF FILM, "BACK TO THE ...