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  2. 400 Years of the Telescope - Wikipedia

    en.wikipedia.org/wiki/400_Years_of_the_Telescope

    Directed by Kris Koenig, it chronicles the history of the telescope from the time of Galileo and features interviews with leading astrophysicists and cosmologists from around the world, who explain concepts ranging from Galileo's first use of the telescope to view the moons of Jupiter, to the latest discoveries in space, including new ideas ...

  3. Lick Observatory - Wikipedia

    en.wikipedia.org/wiki/Lick_Observatory

    Lick Observatory's Shane 120-inch (3-meter) telescope (center) along with the nearby Automated Planet Finder 100-inch (250-centimeter) reflector. Below is a list of the nine telescopes currently operating at the observatory: [42] The C. Donald Shane telescope 120-inch (3-meter) reflector (Shane Dome, Tycho Brahe Peak). Its instrumentation includes:

  4. YouTube Kids - Wikipedia

    en.wikipedia.org/wiki/YouTube_Kids

    YouTube has also presented advocacy campaigns through special playlists featured on YouTube Kids, including "#ReadAlong" (a series of videos, primarily featuring kinetic typography) to promote literacy, [12] "#TodayILearned" (which featured a playlist of STEM-oriented programs and videos), [13] and "Make it Healthy, Make it Fun" (a ...

  5. Tony Bradman - Wikipedia

    en.wikipedia.org/wiki/Tony_Bradman

    Tony Bradman (born 22 January 1954) is an English writer of children's books and short speculative fiction best known for the Dilly the Dinosaur book series. He is the author of more than 50 books for young people published by multiple houses including Alfred A. Knopf, Methuen Publishing, Puffin Books, and HarperCollins

  6. W. M. Keck Observatory - Wikipedia

    en.wikipedia.org/wiki/W._M._Keck_Observatory

    The Keck I telescope began science observations in May 1993, while first light for Keck II occurred on April 27, 1996. The Keck II telescope showing the segmented primary mirror. The key advance that allowed the construction of the Keck telescopes was the use of active optics to operate smaller mirror segments as a single, contiguous mirror. A ...

  7. Amateur astronomy - Wikipedia

    en.wikipedia.org/wiki/Amateur_astronomy

    Amateur astronomer recording observations of the sun. Collectively, amateur astronomers observe a variety of celestial objects and phenomena. Common targets of amateur astronomers include the Sun, the Moon, planets, stars, comets, meteor showers, and a variety of deep sky objects such as star clusters, galaxies, and nebulae.

  8. Space telescope - Wikipedia

    en.wikipedia.org/wiki/Space_telescope

    A space telescope (also known as space observatory) is a telescope in outer space used to observe astronomical objects. Suggested by Lyman Spitzer in 1946, the first operational telescopes were the American Orbiting Astronomical Observatory , OAO-2 launched in 1968, and the Soviet Orion 1 ultraviolet telescope aboard space station Salyut 1 in 1971.

  9. Newtonian telescope - Wikipedia

    en.wikipedia.org/wiki/Newtonian_telescope

    Newtonian telescope design. A Newtonian telescope is composed of a primary mirror or objective, usually parabolic in shape, and a smaller flat secondary mirror.The primary mirror makes it possible to collect light from the pointed region of the sky, while the secondary mirror redirects the light out of the optical axis at a right angle so it can be viewed with an eyepiece.