Cousin Ricky <ric### [at] yahoocom> wrote:
> On 2021-09-15 6:22 PM (-4), Samuel B. wrote:
> >
> > "A" points to three features I suspect might have been produced by asteroids
> > scraping the surface. Notice how they seem to have occurred on the sides or
> > upper portions of a (really large) sloping hill? To me that indicates they were
> > perhaps caused by asteroids hitting the moon at glancing angles... But I can
> > definitely see how they could have been caused by collapsed lava tubes.
>
> I'm guessing rills; if not that, collapsed lava tubes.  It's not
> intuitive, but as far as I know, impact craters are always circular,
> regardless of impact angle.  If anything, a glancing impact might create
> a series of craters, rather than a linear gouge.

Hmm, interesting. Is it due to the high speeds at which the asteroids are
traveling, I wonder? Like, they're traveling so fast that any impact becomes an
explosion?

Sam

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