Jerry garcia is one that will will always stick with me. As mentioned above, the Challenger explosion was memorable as I remember sitting in my 1st grade class watching and then visited Florida for the first time a week after it happened and have some photos of pieces of it being brought in on ships. Recently Yogi Berra's passing hit me in the feels. Of course coach Orr and J-Walt will always have a special place in my heart as they pretty much introduced me to ISU basketball.
Also Han Solo, never thought the man would go.
Dammit...I haven't seen it yet!
I didn't think of Challenger when OP talked about celebrities dying. My father was heavily involved in the Apollo missions and we lived down there for a couple of years in the sixties. I've never lost my fascination with the flights...
I was driving home when the news about Challenger came on the radio. I had to pull over because I couldn't see through the tears to drive.