Far Centaurus
AE van Vogt's short story is about the crew of a subluminal spacecraft waking up from deep sleep after 500 years of travel only to find human colonists had already settled their destination, Alpha Centauri, hundreds of years earlier and are planning a welcome celebration for them. FTL drive was developed while they were in suspended animation. The colonists are friendly but, after arriving, the crew find out they just don't fit in with what mankind has turned into while they were in transit.