Leonard David's INSIDE OUTER SPACE

Credit: Warner Bros. Pictures and Paramount Pictures

You’ve seen the movie, or it’s on your holiday to-do list.

But just how hard is interstellar flight?

Harold White is Advanced Propulsion Theme Lead for the NASA Engineering Directorate at the NASA Johnson Space Center.

In a video, White discusses a couple of advanced propulsion concepts that may one day be useful for crafting an interstellar mission.

White spoke recently at the NASA Ames Research Director’s Colloquium – part of the Center’s 75th anniversary celebration.

Put on your star goggles and take a look at:

https://www.youtube.com/watch?v=Wokn7crjBbA#t=65