(November 23, 2018 at 9:41 pm)Anomalocaris Wrote: If our assessment of the density of material in typical interstellar space is accurate, and it appears to be corroborated by multiple independent observations, Then the odds that sufficient amount of material can meet by chance and collect into an object the size of this asteroid over the life of the universe must be pretty slim.
Agreed. I'm having a hard time figuring that part out. Perhaps a small gas cloud, far too small to form a star and solar system but large enough to slowly form who knows what under some pretty odd conditions. We know that it had to be at least carbonaceous, so remnants of a nova or supernova. If it had been primordial H-He and come within 0.25 AU of the sun it would have made for a fairly impressive comet.