Ranger 5
Ranger 5 was an American Block II Ranger Program space probe that was in service with NASA in the mid-20th century. 

The Ranger 5 was equipped with several pieces of advanced technology for the period, including: lunar capsule, omnidirectional antenna, RADAR altimeter, solar panels, gamma-ray spectrometer, mid-course motor, retrorocket, TV camera, and high-gain antenna.

A diagram depicting this spacecraft was stored in the 's library computer in 2254, and was among the materials viewed by the Talosians when they scanned the Enterprise computer. ()

External links
 Ranger 5 from the archives of the National Space Science Data Center
 

Earth probes (retconned)