tag:blogger.com,1999:blog-8304928500646903522.post685371596648743485..comments2024-03-28T18:32:05.933-04:00Comments on bensozia: SN 1987A at 30Johnhttp://www.blogger.com/profile/01037215533094998996noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-8304928500646903522.post-54946000790515458782017-02-28T11:27:29.982-05:002017-02-28T11:27:29.982-05:00In these contexts, I sometimes wonder, what is &qu...In these contexts, I sometimes wonder, what is "dust"? I mean, I can guess, but what is it really?Davidhttps://www.blogger.com/profile/08993570411881726772noreply@blogger.com