January 2005, the Huygens probe from the Cassini-Huygens mission lands on Saturn's moon Titan.
Totally forgot about that one. God, I think it landed at like 4:00 AM EST or something like that, I just remember being up all night following it, posting on the BBS, being as excited as I could possibly be, and NO ONE ELSE being on line to enjoy it with me, so I was just posting by myself.
That was a super fun and exciting night.
Guess the Pluto fly-by is the only think in the near future we'll have that even comes close to this.