Test Chamber for NASA’s New Cosmic Mapmaker Makes Dramatic Entrance
The customized test chamber for the SPHEREx mission has reached its destination at Caltech’s Cahill Center for Astronomy and Astrophysics in Pasadena. About the size of a small SUV and made of stainless steel, the cylindrical chamber was built by the Korean Astronomy and Space Science Institute (KASI). Courtesy NASA/JPL-Caltech.
The SPHEREx mission will create a 3D map of the entire sky. Its cutting-edge instruments require a custom-built chamber to make sure they’ll be ready to operate in space. After three years of design and construction, a monthlong boat ride across the Pacific Ocean, and a lift from a 30-ton crane, the customized test chamber for NASA’s upcoming SPHEREx mission has finally reached its destination at Caltech’s Cahill Center for Astronomy and Astrophysics in Pasadena. About the size of a small SUV and made of stainless steel, the cylindrical chamber was built by the Korean Astronomy and Space Science Institute (KASI), a partner in the SPHEREx mission. It will be used to test SPHEREx’s detectors (essentially its cameras) and optics (the system that collects light from the cosmos). Read more about this important milestone for the SPHEREx project here.
Recent News
SPHEREx Honored with RNASA Stellar Award
The Rotary National Award for Space Achievement awarded their 2026 Stellar Award to JPL's SPHEREx team for their outstanding contributions to space science and technology.
Read MoreNASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization, and Ices Explorer) mission has mapped interstellar ice at an unprecedented scale. Covering regions in our Milky Way galaxy more than 600 light-years across, the ice was found inside giant molecular clouds — vast regions of gas and dust where dense clumps of matter collapse under gravity, giving birth to...
Read MoreNASA’s SPHEREx Mission Tracks Brightening of Interstellar Comet
NASA’s SPHEREx mission turned its infrared gaze on interstellar comet 3I/ATLAS in December 2025, adding to the deep pool of information the agency has gathered on what is only the third such object to be discovered passing through our solar system.
Read MoreSPHEREx Mission Team Wins ECAD Award
The SPHEREx Mission Team wins the Sylvia A. Earle Award for Exploration Excellence.
Read MoreNASA’s SPHEREx Observatory Completes First Cosmic Map Like No Other
Launched in March, NASA’s SPHEREx space telescope has completed its first infrared map of the entire sky in 102 colors. While not visible to the human eye, these 102 infrared wavelengths of light are prevalent in the cosmos, and observing the entire sky this way enables scientists to answer big questions, including how a dramatic event that occurred in the first billionth of a trillionth of a...
Read More