Roddenberry Nexus is a brand-new Star Trek exhibit in Sansar created by Roddenberry Entertainment, which is also hosting the official Star Trek 2018 convention running from August 1st to 5th in Las Vegas, Nevada:
On September 8th 1966, Gene Roddenberry launched a television phenomenon that would forever change the face of science fiction. Star Trek: The Original Series followed the 23rd-century, interstellar adventures of Captain James T. Kirk and his crew of the Federation Starship, Enterprise. 21 years after its first airing of The Original Series, Gene Roddenberry amazed audiences by re-launching the franchise with its most successful series to date: Star Trek: The Next Generation. Fifty years after its initial airing, the Star Trek franchise includes five live-action television shows, one animated series and thirteen feature-length films.
Linden Lab has a booth at the Star Trek convention, and they are giving people demos of this Sansar experience. In this picture, my avatar is standing in front of the Gene Roddenberry Action Figure Prototype display:

There are many displays featuring items, such as communications devices and weapons, which you can pick up and inspect:
There is a comprehensive timeline display of Star Trek insignia, emblems, symbols, and seals, by Brad Wilder, creator of the Star Trek Design Project website:
When I first visited, the elevator wasn’t working (I’m sure it will be fixed soon). There are a second floor and a third floor with displays of costumes and storyboards from Star Trek: The Motion Picture. (I took these pictures by using the fly-cam mode; please click on each image to see it in a larger size):
There are more details in this VR Focus article: Learn Star Trek’s 52-Year History At The Roddenberry Nexus:
Star Trek fans might be enjoying some gameplay sessions on Star Trek: Bridge Crew The Next Generation DLC at the moment, but those interested in learning about its history can do so in a new immersive way today. Sansar and Roddenberry Entertainment have collaborated on the Roddenberry Nexus, a portal into the Star Trek universe where fans can see the best of Roddenberry’s science fiction properties.
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The Roddenberry Nexus houses a treasure trove of Star Trek memorabilia, including never-before-seen art and artifacts from Star Trek’s fifty-two-year history and new stories such as the short film Instant.
Looking to further involve fans in the history and lore of the TV shows and films fans now have virtual access to its archives, from anywhere in the world whilst providing a hangout space that will serve as a venue for future Roddenberry events and fan meet-ups.
“Roddenberry Entertainment always strives to be on the forefront of innovation, going where no one has gone before,” said Eugene “Rod” Roddenberry, CEO of Roddenberry Entertainment in a statement. “Sansar Studios is a leader in VR development and we are proud to partner with them on this new initiative, combining the history and legacy of Roddenberry with their groundbreaking technology.”
If you’re a die-hard Trekkie, this exhibition is a must-see!
NOTE: You can install the Sansar software client, if you don’t already have it, at https://www.sansar.com/download. And then you can visit and explore this experience by searching for “Roddenberry Nexus” in the Sansar Atlas, or just by clicking this link: Roddenberry Nexus.