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  2. Ultra low expansion glass - Wikipedia

    en.wikipedia.org/wiki/Ultra_low_expansion_glass

    Hubble Space Telescope mirror made out of ULE glass. There are many applications for ULE, but by far the most common is for mirrors and lenses for telescopes in both space and terrestrial settings. One of the most well known examples of the use of ULE is in the Hubble Space Telescope's mirror.

  3. Zerodur - Wikipedia

    en.wikipedia.org/wiki/Zerodur

    The Keck II Telescope showing the segmented primary mirror made of Zerodur. The main applications for Zerodur include telescope optics in astronomy [2] and space applications, [3] lithography machines for microchips and displays, [4] and inertial measurements systems for navigation.

  4. First-surface mirror - Wikipedia

    en.wikipedia.org/wiki/First-surface_mirror

    Technicians assemble 6 of the 18 first-surface mirrors used in the James Webb Space Telescope. A first-surface mirror or front-surface mirror (also commonly abbreviated FS mirror or FSM) is a mirror with the reflective surface being above a backing, as opposed to the conventional, second-surface mirror with the reflective surface behind a ...

  5. Honeycomb mirror - Wikipedia

    en.wikipedia.org/wiki/Honeycomb_mirror

    The un-coated backup primary mirror for the Hubble Space Telescope showing its honeycomb structure. [1]A honeycomb mirror is a large mirror usually used as the primary mirror in astronomical reflecting telescopes whose face is supported by a ribbed structure that resembles a honeycomb. [2]

  6. So Many of Our Readers' Favorite Walmart Finds Are on Sale ...

    www.aol.com/lifestyle/many-readers-favorite...

    Why we like it: Another best-selling Walmart product among Good Housekeeping readers, this full-length mirror stands out for its sophisticated arched silhouette and easy installation, thanks to ...

  7. Primary mirror - Wikipedia

    en.wikipedia.org/wiki/Primary_mirror

    The largest optical telescope in the world as of 2009 to use a non-segmented single-mirror as its primary mirror is the 8.2 m (27 ft) Subaru telescope of the National Astronomical Observatory of Japan, located in Mauna Kea Observatory on Hawaii since 1997; [3] [better source needed] however, this is not the largest diameter single mirror in a telescope, the U.S./German/Italian Large Binocular ...

  8. Optical Telescope Element - Wikipedia

    en.wikipedia.org/wiki/Optical_Telescope_Element

    The mirror assembly from the front with primary mirrors attached, November 2016 The secondary mirror being cleaned with carbon dioxide snow. Optical Telescope Element (OTE) is a sub-section of the James Webb Space Telescope, a large infrared space telescope launched on 25 December 2021, [1] consisting of its main mirror, secondary mirrors, the framework and controls to support the mirrors, and ...

  9. This $35 mirror is 'like trying on clothes in a super fancy ...

    www.aol.com/lifestyle/gold-arch-mirror-walmart...

    This stunning floor-length mirror can be used in several ways: as a standing floor mirror, leaning against a wall or mounted onto the wall — the design options are endless. $35 at Walmart