How the Hubble Telescope became the 'Energizer bunny of spacecraft,' according to one of its astronaut visitors

How has the Hubble Telescope lasted so long? One of the astronauts who helped repair it explains.

https://www.space.com/space-exploration/hubble-space-telescope/how-the-hubble-telescope-became-the-energizer-bunny-of-spacecraft-best-nasa-ambassador-according-to-hubble-hugging-astronaut