Soon after Hubble launched, scientists realized there was something wrong with it’s mirror. What most people don’t know is that an identical backup mirror was made but never used. This video looks at how Hubble’s mirror ended up being flawed and why the backup mirror was never used.
» Reconciliation – Asher Fulero
» Air To The Throne – Doug Maxwell
» Long Road Ahead – Kevin MacLeod
Tags: hubble telescope, space shuttle, nasa, backup mirror, space telescope, defect, astronomy, physics, education, costar