NASA’s SPHEREx (Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer) observatory, the size of a compact car, utilizes a wide-field aluminum telescope. One of SPHEREx’s most striking features — its series of three nested conical photon shields — helps it stay cold and see faint objects. The mission’s infrared telescope …
Meet the Spacecraft: SPHEREx
