https://hackerpaper.kaipfister.de/p/1210.1319/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=38429037urn:hackerpapers:mention:1210.1319:38429037Mon, 27 Nov 2023 06:50:22 GMT<p>Several of them use multiple as-independent-as-possible detection methods. The most common are ground stations in a grid that measure high energy particles passing through, and then correlate them in time, followed by ultra fast (in terms of data acquisition - eg 20M samples/s) telescopes pointed at the atmosphere (not the sky), which can see the slight trace of fluorescence light left behind by the air shower from up to tens of kilometers away. What&#x27;s common to all of the detection methods I know of is the atmosphere. Back at Pierre Auger Observatory, we used a combination of LIDAR scans and…</p><p><a href="https://hackerpaper.kaipfister.de/p/1210.1319/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.HE