The first question (currently) has 2 reopen votes, but 3 people said to leave it closed, so it has been removed from the reopen queue. It takes 5 people to reopen it (or one mod), so you need 3 more people with the appropriate level of privileges to get it reopened (oftentimes, bringing the post to Meta will result in the "Meta effect" where questions are reopened (deserved or not)).
I don't think the second question is unclear, but 5 other people thought so. Though in retrospect, your first part might be considered a duplicate of As the universe ages, will we see more stars or less?. It might be the second part that is considered unclear, though I'm not sure I'd agree with that and would hope one of the 5 close voters can comment on that.
Note, though, that there isn't a requirement that anyone comment on a question about why they're voting such a way that they have. It has been my experience that the first close-voter on a question would leave a comment about why they're voting such a way (e.g., "It's not clear to me what you mean by ..." or "We are not a homework help site ..."). I'm not sure why it wasn't done in this case, but, again, it's not a requirement so I personally am not concerned about the lack of the comment.
Further, I wouldn't put much stock in using votes as a rationale for your post being okay because (a) there is a small contingent of users on this site that give sympathy votes to (somehow) balance out downvotes and (b) even wildly off-topic questions get upvotes & views simply because (interested) users like the question (I discussed this previously as well).