[Sol88]

Originally Posted by jonesdave116

No, you are too dense to get it. It is seen. By MIRO. As outlined in a paper 4.5 frigging years ago. To nobodies surprise. At 3.9 AU.

http://blogs.esa.int/rosetta/2015/06...n-comets-coma/

Distribution of water around the nucleus of comet 67P/Churyumov-Gerasimenko at 3.4 AU from the Sun as seen by the MIRO instrument on Rosetta
Biver, N. et al. (2015)
https://www.aanda.org/articles/aa/ab...a26094-15.html

Quote:

Other evidence that there is some backflow of water from day- to nightside (even if not dominant close to the nucleus) is the clear detection of water emission (Figs. 2 and 6) beyond the nucleus on the nightside at levels that are often higher than against the nucleus

Interesting point, considering by now we are NOT talking about neutral molecules.

Backflow? Of charged matter? Interestingly the dust is also negatively charged and makes quite the show in the night sky.

So, jonesdave116, “water” and dust everywhere!!

But not enough ice to make comets mostly ice but enough dust to make comets mostly rock...