Constraints on Earth-mass primordial black holes from OGLE 5-year microlensing events · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/1901.07120/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTConstraints on Earth-mass primordial black holes from OGLE 5-year microlensing events — mentioned by jbotzhttps://news.ycombinator.com/item?id=23996879urn:hackerpapers:mention:1901.07120:23996879Thu, 30 Jul 2020 11:26:47 GMT<p>This paper has been on Arxiv since nearly a year ago; surprisingly it apparently didn&#x27;t make HN at the time, even though it did get a bit of publicity then, including the MIT technology review[0]. Despite the sense of humor evident in the included to-scale &quot;picture&quot; of a black hole, the paper is quite serious... it may be speculative, but it&#x27;s science. Also, the authors are not the first to speculate that the OGLE microlensing events could be best explained by a population of primordal black holes[1]. However, Planet 9 could still just easily just be an ordinary planet.. the final point of…</p><p><a href="https://hackerpaper.kaipfister.de/p/1901.07120/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.CO