Star Trek Las Vegas 2017 included two very special guests!
Nichelle Nichols, known for her role as communications officer Lieutenant Uhura in the original Star Trek TV series, and Mae Jemison, the first African-American woman to travel in space, reunited at the special Trekkie convention in Las Vegas, Nevada, on Wednesday.
WATCH: EXCLUSIVE: Sonequa Martin-Green Explains How 'The Walking Dead' Prepared Her for 'Star Trek: Discovery'
"A special moment. @NichelleIsUhura joins @maejemison onstage at #STLV17," the official Star Trek Twitter wrote alongside a pic of the two. In a second snap, Nichols and Jemison are seen smiling wide as they put up the "Live long and prosper" sign.
Nichols portrayed Lieutenant Uhura from 1966 to 1969, and reprised the role in the succeeding films. Her role was groundbreaking for African American women and the character was part of the first interracial kiss on television.
Jemison was a fan of the original series and cited Nichols' powerful character as her inspiration for joining NASA. She even had a cameo on Star Trek: The Next Generation. Now, Jemison is gearing up to head the 100 Year Starship Project, which is working on taking people beyond the solar system.
RELATED: 'Star Trek: Discovery' to Split First Season Into 2 Chapters -- Plus, Check Out New Key Art!
The iconic sci-fi series is getting a new chapter with CBS' Star Trek: Discovery, set to debut on Sept. 24. ET spoke with the show's lead, Sonequa Martin-Green, who plays First Officer Michael Burnham, at the CBS TCA party in Los Angeles on Tuesday, where she shared that the fandom surrounding the franchise "is on another level."
"This has expanded even beyond what I witnessed on [The Walking Dead]," she admitted. "I've been trying to put it into words [how dedicated the fans are] and I've been kind of sort of getting it a little bit. I've been skimming the surface of how deep and profound it is to me, and how grateful and honored I truly am."
See more of what Martin-Green had to say about her Star Trek experience so far in the video below.