Recent content by Idaho Astro

Interestingly, the 7 July 2017 news release from LIGO (https://www.ligo.org/news.php) references eight candidate detections, although it's not clear whether that number includes the four detections (or five, if you count the not-sufficiently-statistically-significant event LVT151012) which had...

If it is, indeed, iron, then the streak test (rubbing it on unglazed porcelain, like the underside of a toilet lid or the back of a porcelain tile) is a pretty strong indicator. If it's terrestrial iron, it will either leave a dark gray streak (magnetite) or a blood red streak (hematite). A...