Webb Telescope’s Success Will Rest On New Technologies

galaxy  cluster Abell 2744
The Webb telescope will use galaxy clusters such as Abell 2744 as a gravitational lens to look farther out in space.
Credit: NASA/ESA/J. Lotz, M. Mountain, A. Koekemoer and HFF Team at STSCL
When it came to inventing the successor to the Hubble Space Telescope, an instrument intended to image the universe’s first stars and galaxies, engineers faced the tyranny of the rocket fairing: how to fit a 269 ft.2 primary mirror—more than seven times the surface area of Hubble’s—into a 56-ft...

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