jsc2025e044726 (5/12/2025) --- Solar Flare X-Ray Timing Instrument (SFXTI) integrated on Space Test Program – Houston 10 (STP-H10). STP-H10-SFXTI measures solar hard X-ray energy spectra with high energy and time resolution. These measurements can only be made from space because solar X-rays do not penetrate Earth’s atmosphere. Image courtesy of Montana State University.