SPHEREx: NASA's Near-Infrared Spectrophotmetric All-Sky Survey · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/2404.11017/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTSPHEREx: NASA's Near-Infrared Spectrophotmetric All-Sky Survey — mentioned by perihelionshttps://news.ycombinator.com/item?id=43335648urn:hackerpapers:mention:2404.11017:43335648Tue, 11 Mar 2025 18:37:23 GMT<p>I did a quick search and it seems there is neither? - &quot;SPHEREx relies on an entirely passive cooling system — no electricity or coolants are used during normal operations&quot; https://www.jpl.nasa.gov/news/6-things-to-know-about-spherex... edit to add: - &quot;The telescope is passively cooled to below 80 K in low-Earth orbit by three nested V-groove radiators. An additional radiator cools the long wavelength focal plane temperature below 60 K to reduce detector dark current.&quot; https://arxiv.org/abs/2404.11017v1</p><p><a href="https://hackerpaper.kaipfister.de/p/2404.11017/">Paper and discussion history</a>. A mention is not an endorsement.</p>astro-ph.IM