Carrie Fisher passed away Tuesday, and the world felt the loss. In a year of devastating celebrity deaths, Fisher's is one of the hardest.

Not only did Fisher famously play Princess Leia in the Star Wars franchise, but she was a respected author and — perhaps most importantly — an advocate for bipolar disorder, which she suffered from.

While we mourn Fisher's death, those who knew her best took to social media to share their thoughts.

Remember other celebrities who have passed in 2016