Exit strategy Artist’s impression of New Horizons as it flew past Pluto in 2015. (Courtesy: Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute) NASA’s New Horizons ...

In the iconic opening sequence of the 1960s TV show "Star Trek," the viewer has this feeling of drifting through space, plunging through a field of stars. (SOUNDBITE OF TV SHOW, "STAR TREK") WILLIAM ...

For millennia, the way we found our way home has been using the stars. The tech we have sent towards those stars also uses the position of distant shining dots to find their orientation and not lose ...