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  2. Nicholas U. Mayall Telescope - Wikipedia

    en.wikipedia.org/wiki/Nicholas_U._Mayall_Telescope

    Kitt Peak—Mayall is the tall one Looking out at Kitt Peak from Mayall. The Nicholas U. Mayall Telescope, also known as the Mayall 4-meter Telescope, is a four-meter (158 inches) reflector telescope located at the Kitt Peak National Observatory in Arizona and named after Nicholas U. Mayall.

  3. List of the largest optical telescopes in North America

    en.wikipedia.org/wiki/List_of_the_largest...

    Lowell Discovery Telescope [2] 4.3 m: 169" Single: USA: ... Nicholas U. Mayall 4m [3] 4 m: 158" Single: USA: ... For telescopes below 3 meters see List of large ...

  4. Kitt Peak National Observatory - Wikipedia

    en.wikipedia.org/wiki/Kitt_Peak_National_Observatory

    The Mayall 4-meter telescope. In 1976 the Mayall Telescope was used to discover methane ice on Pluto. [18] The 90 cm Spacewatch telescope was used to discover the Kuiper belt body, 20000 Varuna in the year 2000. [19] This was discovered by an astronomer noticing the slow moving object in a blink comparison. [19]

  5. Nicholas U. Mayall - Wikipedia

    en.wikipedia.org/wiki/Nicholas_U._Mayall

    Mayall using the 4-metre KPNO telescope in 1973. As director, Mayall oversaw the building of the 4-meter (160 in) Kitt Peak reflector. [62] It was still being built when he retired in 1971, and was completed in 1973, [63] at which point it was named the Nicholas U. Mayall Telescope in his honor.

  6. List of largest optical reflecting telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_optical...

    Thirty Meter Telescope, Hawaii, USA – 30 m (1,200 in). Construction began in 2014 but halted in 2015; as of 2022 it has not resumed. [24] Giant Magellan Telescope, Chile – seven 8.4 m mirrors on a single mount. This provides an effective aperture equivalent to a 21.4 m mirror and the resolving power equivalent to a 24.5 m mirror.

  7. These Fitness Trends Are Expected to Take Over in 2025 ...

    www.aol.com/fitness-trends-expected-over-2025...

    2025 fitness trends are expected to include strength training, a holistic mind-body approach, more wearable tech, and AI-generated workouts, to name a few.