The cloud disappeared when is came closer to Earth. The cloud was 82 AU's in diameter (1 AU = the distance from Earth to the Sun). The ship itself was a whole lot smaller than that, but nonetheless about 100 kilometers long (Kirk ordered to 'skim' the surface at 500 meters for 100 kilometers, and it appeared that they went all the way through to the back of the ship).
"Let mental culture go on advancing, let the natural sciences progress in even greater extent and depth, and the human mind widen itself as much as it desires: beyond the elevation and moral culture of Christianity, as it shines forth in the Gospels, it will not go." Goethe
Is it one of those dog things from "The Enemy Within"?
------------------ Frank's Home Page "We were leaving New York this morning and we were checking in at the gate at the airport and the attendant said, 'You must be musicians,' and I said, 'Yes,' and she asked, 'What's the name of your band?,' and I said, 'We're called the Statesmen,' and she said, 'Oh, I've heard of you!'. I think if we'd said, you know, 'We're the Green Egg,' or something, she would have said the same thing." - John Linnell
Q13: I assume it's fairly sentient, this was never discussed to any great extent! Don't expect to have a conversation with one though...
It ain't a neural parasite.
DING! Andrew R is close enough with his answer! The creature in question is a Denebian Slime Devil as mentioned in "The Trouble With Tribbles" and illustarted as a rather bizarre red crouching creature in Shane Johnston's "Worlds of the Federation"
Ah, the mantle is passed once more...
*eyes go out and body turns black*
------------------ "No way man! I've served my time in hell, and I ain't going back... Not without a fight!"
Waitaminute... The Denebian slime devil line was in "Trials and Tribble-ations", also, meaning that they were mentioned in DS9. Also, since the picture came from a book, it's not canon, so there's no way to know if one could fit in a backpack.
I wish somebody would do one of these contests where the clues are actually valid... :-)
------------------ Jackson: "Basically, he was the original Satan." O'Neill: "Well, isn't that special?" -Stargate SG-1: "Serpent's Song"