Space – RHESSI

A Sunpower M77 cryocooler cools the detectors aboard the NASA RHESSI satellite, which was launched in February 2002. The cryocooler maintains the detectors at the required operating temperature of minus 324 degrees Fahrenheit (minus 198 degrees Centigrade, or 75 degrees above absolute zero). The M77 has been operating flawlessly on RHESSI since February of 2002. … Continue reading Space – RHESSI