SPACE - Voyager 1 has entered interstellar space at last, NASA says

A spacecraft from Earth has left its cosmic backyard and taken its first steps in interstellar space, NASA says.After streaking through space for nearly 35 years, NASA's robotic Voyager 1 probe entered interstellar space in August 2012, a study published Thursday in the journal Science reports ...

http://www.nbcnews.com/science/voyager-1-has-left-our-solar-system-las