interstellar travel

Yuri Milner and astrophysicist Stephen Hawking announced Breakthrough Starshot, a new space exploration initiative, on April 12, 2016, in New York City.

Matt Damon, star of the new movie "The Martian," has appeared in two other major science fiction movies in the last two years. Could the Hollywood A-lister keep up his science fiction streak?

Blasting tiny, waferlike sailing spacecraft with powerful lasers could slash interstellar flight times from thousands of years to mere decades, one researcher says.