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  2. Arecibo Telescope - Wikipedia

    en.wikipedia.org/wiki/Arecibo_Telescope

    The Arecibo Telescope was a 305 m (1,000 ft) spherical reflector radio telescope built into a natural sinkhole at the Arecibo Observatory located near Arecibo, Puerto Rico. A cable-mount steerable receiver and several radar transmitters for emitting signals were mounted 150 m (492 ft) above the dish .

  3. James Webb Space Telescope - Wikipedia

    en.wikipedia.org/wiki/James_Webb_Space_Telescope

    The first full-color images and spectroscopic data were released on 12 July 2022, which also marked the official beginning of Webb's general science operations. U.S. President Joe Biden revealed the first image, Webb's First Deep Field, on 11 July 2022. [258] [259] Additional releases around this time include: [263] [264] [265]

  4. Hubble Space Telescope - Wikipedia

    en.wikipedia.org/wiki/Hubble_Space_Telescope

    The Hubble Space Telescope (HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile, renowned as a vital research tool and as a public relations boon for astronomy.

  5. Arecibo Observatory - Wikipedia

    en.wikipedia.org/wiki/Arecibo_Observatory

    The observatory's main instrument was the Arecibo Telescope, a 305 m (1,000 ft) spherical reflector dish built into a natural sinkhole, with a cable-mount steerable receiver and several radar transmitters for emitting signals mounted 150 m (492 ft) above the dish.

  6. The agency's deputy acting director for astrophysics Michael Moore states that using both telescopes may ultimately save NASA $1.5 billion. [9] David Spergel estimated that using an NRO telescope would add about $100 million to WFIRST's cost, but would prefer to spend another $200 million for a coronagraph to improve its direct-imaging ...

  7. Transiting Exoplanet Survey Satellite - Wikipedia

    en.wikipedia.org/wiki/Transiting_Exoplanet...

    The spacecraft will spend two 13.70-day orbits observing each sector, mapping the southern hemisphere of sky in its first year of operation and the northern hemisphere in its second year. [37] The cameras actually take images every 2 seconds, but all the raw images would represent much more data volume than can be stored or downlinked.

  8. Corning Inc. - Wikipedia

    en.wikipedia.org/wiki/Corning_Inc.

    The California Institute of Technology's 200-inch (5.1 m) telescope mirror at Palomar Observatory was cast by Corning during 1934–1936, out of low expansion borosilicate glass. [14] In 1932, George Ellery Hale approached Corning with the challenge of fabricating the required optic for his Palomar project.

  9. Thirty Meter Telescope - Wikipedia

    en.wikipedia.org/wiki/Thirty_Meter_Telescope

    In 2000, astronomers began considering the potential of telescopes larger than 20 meters (66 ft) in diameter. The technology to build a mirror larger than 8.4 meters (28 ft) does not exist; [as of?] instead scientists considered two methods: either segmented smaller mirrors as used in the Keck Observatory, or a group of 8-meter (26') mirrors mounted to form a single unit. [23]

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