I have been looking at the unanswered questions on this site for some time (for some days tbh) and in my opinion, most of them are very intriguing and interesting and they deserved to get answered. There are interesting comments beneath the questions but there is no answers or even a partial answer. Some users might comment after some months or years to give some new updates like new findings or some new information but nobody are aware of that because OPs are inactive and they do not edit the question and so they doesn't get bumped on the main page. Eventually, the question gets cold and gets accumulated in the unanswered tab.
I do not have sufficient knowledge and lack expertise in this field but I would like some of these interesting question to get answered. I do not have enough reputation to give bounties on these question. Also, these question are already well-formatted so there is no room for editing (and thus do not get bumped on the main page).
Some honorable mentions:
"SE - stop firing the good guys" is doing a commendable job in answering some old questions in the space exploration site (you can check his activity).
"uhoh" is a master in commenting and linking questions and stuffs (he has a habit of linking unanswered question and giving some attention). He too asks good questions.
"usernumber" also ask some good question, some of his question are left unanswered.
So, I would like some highly knowledgeable users here to make an effort in answering and giving some light to these questions. Note that I am not forcing anyone. Anyone who has or give a certain interest in some question might give a try, or do some edit or give some bounty and thus attract attention.
I do realize that all questions can't be answered so, I don't expect all of them to get answered but I am sure some of them will get very good answers.