Okay, I'm sure you all already know this, so apologies if this is a well-known fact and I'm just being a high-level noob. But I was in the Alderaan Bonus Series area (Republic side) and there's an Alderaan guard named Weeznod or something, and he wants you to recover a holocron. So I did the quest, but left Alderaan for some reason and came back a day or two later. Ol' Weezie wanted to talk to me again! So I looked in my quest log and it said "Repeatable - this mission can be repeated in the future"!