Reflective X-ray Optics (RXO) was formed in 2005 by Dr. David L. Windt. RXO has produced EUV multilayer coatings for NASA’s SDO/AIA and GOES-16/SUVI solar physics satellite instruments, and hard X-ray multilayer coatings for NASA’s NuSTAR astronomy mission. RXO has also produced coatings for a number of NASA sounding-rocket instruments, including Hi-C, MOSES, EUNIS, VERIS and SCORE, along with a variety of novel coatings for other EUV and X-ray applications as well.