In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Q: Doctor Who: I 've never been more serious , Colonel . We are facing an enemy of greater power than you can dream of .
Skinsale: I do appreciate the scientific romances of Mr. Wells , but ...
Doctor Who: Herbert may have a few of his important facts wrong , but his basic supposition is sound enough . Do you think your little speck in the galaxy is the only _ one _ with intelligent life , hm ?
A:
speck