From Borg battles to impossible moral choices, these are the 'Star Trek' episodes that define the hit sci-fi franchise.

With its departure ahead of Crew-12's arrival, Crew-11 leaves behind a skeleton crew of three aboard the ISS, including ...

Crew-11 is scheduled to depart the orbiting lab on Wednesday (Jan. 14) at 5:05 p.m. EST (2205 GMT). On Wednesday afternoon ...