New detectors are installed on the new 90 GHz receiver at our Chile site! Go team!!

🐝🐝🐝 The CLASS site team has been busy! 🐝🐝🐝 Here is a video of them assembling the new receiver, which comes together as nested layers. When operating, all layers are under vacuum, and outer layers thermally shield colder layers underneath. The innermost is at 0.05 Kelvin!

🇧🇷 Brazilian CLASSmates, Jullianna and Deniz, receive an official "Motion of Applause" from the city council of their hometown for their work with CLASS and the recent results! 👏 instagram.com/reel/DLU5woHsc…

!!! Congratulations to Rui Shi for successfully defending her PhD thesis: "Cosmology Large Angular Scale Surveyor: From Instrumentation to Beyond the Standard Model" !!!

Not a bad commute! A view from the drive home from the observing site.

Johns Hopkins researchers are part of an international team that has installed a new dark matter detector about two kilometers beneath the French Alps. The technology is designed to search for lighter dark matter particles that previous experiments could not detect.

SPT-3G 1500d D1 MCMC Chains are now available on NASA LAMBDA lambda.gsfc.nasa.gov/product/spt/sp…

🚀 Science Fair day in San Pedro de Atacama, the main local community close to the telescopes 🇨🇱🫶 The CLASS site team Deniz and Jullianna created and hosted an interactive display about the telescopes and cosmology for students and other residents! 💫

Beautiful new reflective half-wave plate being made here. The copper sheen is about a kilometer's worth of 100 µm wire. Though admittedly with the handles and the color it looks like paella 🥘!