NASA's James Webb Space Telescope - Today's Webb Fact: Webb is the scientific complement to the Hubble Space Telescope, but the two telescopes are physically different. Webb has a mass of about
Hubble Space Telescope - Wikipedia
Observatory - Optics | NASA
Hubble vs James Webb Space Telescope mirror size - YouTube
NASA SVS | Webb Mirror Size Comparison with Hubble Animation
Hubble Space Telescope - Wikipedia
Hubble's Instruments Including Control and Support Systems (Cutaway)
Scientists Undeterred By Hubble Successor's Costs : NPR
BBC NEWS | Science/Nature | Telescope mirror nears completion
Comparison of Hubble and James Webb mirror | ESA/Hubble
Hubble Trouble - How did the Space Telescope Mirror End Up Flawed ? - YouTube