Darwin
Darwin was a Human Starfleet officer aboard the  in 2259. 

She replaced  as the ship's navigator when he replaced  as chief engineer. Darwin remained at her station throughout the hunt for John Harrison and the subsequent battle with the . She followed 's lead in defying 's orders to abandon ship and remained at her station until, unknown to her,  realigned the warp core. A relieved Darwin observed that it was a miracle, prompting Spock to comment that there were no such things. ()

Appendices

Background information
Darwin was played by Aisha Hinds.

Apocrypha 
The  virtual collectible card battle game Star Trek: Rivals is using a promotional picture of her for card #47, titled "Navigation Officer ".

The video game Star Trek: Fleet Command gives her the first name Mae.

In the first issue of Star Trek: Boldly Go, Darwin was a Lieutenant and was assigned to the USS Endeavour under Kirk's command.

External link 
 
Humans
Starfleet command personnel
USS Enterprise (NCC-1701) personnel (alternate reality)