/u/stewjw on I am Jeff Hoffman, MIT Professor of Aerospace Engineering and former NASA Astronaut. Ask Me Anything!19 Feb 2015, 18:54 UTC
Will science & engineering ever be able to find a solution to the vast distances needed to be covered beyond our solar system to visit other regions of our galaxy and beyond? Or will humans or our evolutionary descendants be for ever confined to rotating around this Sun until in a few billion years it becomes a red giant and engulfs the Earth leading to our extinction. I am in a jovial mood.