Emblem of United Earth Starfleet Command, including UESPA's name.
United Earth Space Probe Agency (abbreviated UESPA) was a part of the United Earth government which was responsible for space exploration.
UESPA evolved, in part, from the
United Earth AeroNav Forces of the early 21st century. ( TOS novel: )
Strangers from the Sky
2067, UESPA launched the Friendship One probe toward the Delta Quadrant, as part of a series of unmanned exploration. ( VOY episode: " Friendship One")
2130s the United Earth Starfleet had taken UESPA's place as Earth's leading exploratory agency, but the two would continue to cooperate. ( ENT episode: " First Flight")
UESPA personnel also aided in the construction of the
in Enterprise 2150. ( )
Star Trek: Enterprise
After the founding of the
Federation, UESPA became one of the five sub-commands of the new Federation Starfleet. UESPA was responsible for the exploratory division of the new Starfleet; the USS was part of this division. ( Enterprise - ENT Rise of the Federation novel: )
A Choice of Futures
UESPA continued to help control
Starfleet vessels into the 2260s. James T. Kirk reported the destruction of the USS to UESPA. ( Antares TOS episode: " Charlie X")
Later, Kirk informed
John Christopher that UESPA was the USS 's operating authority. ( Enterprise TOS episode: " Tomorrow is Yesterday")
Wheeler Stinson studied accounts of the first days of UESPA. ( DS9 novel: )
In one alternate timeline, the
IKS was a UESPA vessel prior to its capture by Qu' Klingons. ( TNG novel: )
Q & A
In another alternate universe, UESPA became a purely military organization after several other powers established the
Interstellar Coalition. They operated the UESS in the Enterprise 2260s. ( Star Trek: Myriad Universes novel: )
A Less Perfect Union
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UESPA is commonly represented by a golden arrowhead.
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- ENT Rise of the Federation novel: , Chapter 1, Page 14 A Choice of Futures “Below the piping, next to the vertical zipper of the left-hand tunic pocket, was the gold arrowhead insignia of the United Earth Space Probe Agency, the government department that administered Earth’s Starfleet.”