NASA may build replacement instrument for Japanese astronomy missionIlustration of the Hitomi x-ray astronomy satellite, launched by JAXA Feb. 17 with instruments from NASA and other space agencies. Credit: JAXA/Akihiro Ikeshita WASHINGTON — NASA is considering building a replacement for an instrument lost on a Japanese X-ray astronomy satellite earlier this year that could fly on another Japanese spacecraft. In a presentation to the astrophysics subcommittee of t
