... Missions . ... Title: . ... Spectral Interferometry for Broadband UV / Optical Missions . ... EDI spectroscopy offers important advantages for large aperture and high-resolution space-mission instrumentation because EDI boosting permits high-resolution results to be obtained with smaller low-resolution spectrograph units, large slit widths, or poor and unstable optical focus. ... We review Si PIN diode technology and discuss their potential application to future UV-Optical space missions. ...