800px-ESO_-_Alpha_Centauri_and_the_Southern_Cross_(by)

Here on Centauri Dreams we often discuss interstellar flight in a long-term context. Will humans ever travel to another star? I’ve stated my view that if this happens, it will probably take several hundred years before we develop the necessary energy resources to make such a mission fit within the constraints of the world’s economy.

http://www.centauri-dreams.org/?p=35402