Phil, I'm sorry to pour cold water on Gasprateuthis but the published image is purely a "line of sight" phenomena. Everyone associated with asteroidal biology agrees that cephalopods can't exist on Gaspra, it's too damn grey, it's the wrong colour Gromit !
What was imaged was in fact a migrating GMSS. eggbound & heading to the spawning grounds on Europa.
It's common knowledge that the ice on Europa is regularly broken by comets & Roger the asteroid captured by the immense gravitational pull of Jupiter.
Just ask Mrs Shoemaker (R.I.P Mr. shoemaker
) or Mr. Levy.
Word on the street is that GMSS are very sensitive to infra-sound & can hear these impacts even through the void of space & the low frequency vibration sets off the females urge to mate (similar behaviour is displayed by young human females on hearing a fat wallet hit the floor).
Apparently it is also common knowledge, having been posted in the public domain, that this migration is only possible due to the GMSS being able to "hold it's breath" as such, for immense periods. This is a trait acquired due to squid gills & bums being very much adjacent to each other
With Earth's history of impacts & ice ages, I am willing to put my neck & reputation on the line state loud & proud that life on Earth started with an off-course GMSS migration. If you watch Stanley Kubricks documentary on the history & evolution of intelligent life you'll hear Dave Bowman say about the monolith "My god, it's full of squid !
We are squidkind.
erratum: "Roger the asteroid" should read "rogue asteroid"