• Research
  • Astrophysics/Cosmology
  • Astrophysics

U of I Professor Joaquin Vieira and his team built all of the cryogenic optics for the SPT-3G camera, which were a critical component of the project. This entailed developing a new type of anti-reflection coating for the optics that could survive down to 0.3 degrees above absolute zero, a feat that required about four years of research and development.