I am correct,
Sol88: no
rocks or
rock boulders or
rock rubble piles unless someone is deluded enough to think that comets are made of rock. The bloggers on the Rosetta web site know basic facts about comets and do so will not be deluded that comets are rocks. Thus to anyone who can understand science and English:
Boulder close-up is a close-up of a boulder of ice and dust.
An image with no source of "rubble piles" is an image of ice and dust rubble piles.
ETA: The author of that blog entry looks like
Emily Baldwin
(my
emphasis added)
She is not a mythologist who makes up fairy stories about comets (Talbott) or a physicist who has fallen for Velikovsky's delusion and has a fantasy about electrical discharges creating the Grand Canyon (Thornhill) or an electrical engineer who is comfortable working with people who hold such fantasies as real (Scott).
There is no mystery to anyone who bothers to learn about the scientific model of comets rather then obsessing on popular science labels,
Sol88: Comets are made of ices and dust. Basic physics will tell you that ice and dust in space will form shapes that look like rocks in images (it has to do with something called gravity!).
Plenty unexpected (and a few things unexpected):
Rosetta images of Comet 67P/Churyumov–Gerasimenko 1: Near-surface icy terrain similar to comet Tempel-1 Max Wallis1 and N. Chandra Wickramasinghe.
You do not have to repeat The Thunderbolts delusion that clays, carbonates, sulphides and silicates found in dust particles is ROCK,
Sol88. We already know that thinking that dust particles are ROCKS is a delusion. Though a source on Thunderbolts would be good so that we can be sure that this is their delusion based on their ignorance between the difference between DUST PARTICLES and ROCK.
Delusional is the correct word for the 60-year old delusion that planets whizz around to fit the cherry picked myths in volition of the laws of physics: myths:
The ignorance, delusions and lies in the Thunderbolts web site and videos (mostly about their electric comet delusion but there is other stuff).
We have to thank
Haig for making it clear that the basis of the electric comet idea is the Velikovsky's delusion from the 1950's

!