in 2009, astronauts John Grunsfeld & Drew Feustel remove COSTAR (Corrective Optics Space Telescope Axial Replacement), which corrected Hubble's vision since 1993. It's no longer needed because all of Hubble's instruments now have a correction built …

Sign in to participate in the conversation

We are! We are a generalistic and moderated Mastodon instance for people of all colours and sizes. No ads, no tracking just be free.