Spacelab Regula I was a Federation research station located in orbit of the Class D planetoid, Regula, located in the Mutara sector. Also known as "Marcuslabs" in the 2280s, Regula I was under the direction of Dr. Carol Marcus, whose scientific team were working on Project Genesis.
In 2285, Regula I was raided by Khan Noonien Singh in an attempt to obtain the Genesis device for himself. While the Marcuses and the Genesis research material were transported down to Regula, the other research staff were tortured and killed by Khan as he attempted to discover where the information was witheld. Little did he know that the USS Enterprise would also stop at this base to figure out what happened after the ambush by the USS Reliant. (TOS movie, novelization & comic adaptation: Star Trek II: The Wrath of Khan)
A few weeks later, Dr. Marcus returned to Regula I, where Admiral James T. Kirk personally informed her of David Marcus' death on the Genesis Planet at the hands of the Klingons. Following this, the USS Excelsior arrived to take Admiral Kirk and his former command staff into custody. (TOS - The Mirror Universe Saga comic: "... Promises to Keep")
In an alternate reality, the Regula I Spacelab was assigned to receive Starfleet personnel in 2258 after an emergency mobilization of undergraduate cadets at Starfleet Academy. Cadet Fugeman was one of the students pressed into active service, assigned to Regula I. (TOS novelization: Star Trek)
|Spacelab Regula I|
|sections and compartments||Thermionics • Wave Matrix ETM Storage|
|personnel and residents||2280s
|Jan • J. Adzhin-Dall • Z. Chitirih-Ra-Payjh • V. Madison • D. March • C. Marcus • D. Marcus • Yoshi • unnamed Regula I personnel|