Public domain
EVA 3 - newly installed PCU unit
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
STS109-322-025 (1-12 March 2002) --- A close-up view of the power control unit or PCU, which is the heart of the Hubble Space Telescope (HST) power system. Astronauts John M. Grunsfeld and Richard M. Linnehan, STS-109 payload commander and mission specialist, respectively, replaced the PCU on March 6, 2002, during the third space walk of the mission.
NASA Image and Video Library’s own descriptionCredit lineEVA 3 - newly installed PCU unit. NASA/JSC, 2002-03-06. Public domain. ID: sts109-322-025.