[exDemMom]

Second, the lack of a comet-like tail of vaporized ice — despite passing even within Mercury’s orbit — seems to be the result of unknown organic matter which shields its internal ice from the sun’s immense heat.

Is there any reason the object must have an internal ice core? Couldn't the object be composed solely of various types of rock?

I see from an internet search that the object is classified as an asteroid, not a comet. So it very well might have no ice.

[American in Israel]

The old ice shedding theory was debunked a decade ago. It’s non magnetic and non conductive so it has no tail...