Intergalactic Travel 

The travel between galaxies - which is considered complete and utter science fiction given the incredible distances. Even light will take 2.5 million years to reach our nearest galaxy.

Intergalactic travel, even to our nearest galaxy, would mean a minimum distance of 23,700 million million million meters away making it cleanly impossible.

Intergalactic Travel by nick weiner January 28, 2009