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      Eric Kelly

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        We make it a point that learning at Cool Scopes must be an experience that is loved and not the opposite of it.

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        Cool Scopes offers educational services to the people concentrating more on science and telescopes. With a different approach to teaching, we are able to make people understand the working and the theory behind various things in an entertaining and engaging manner.

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        Types of Telescope Everyone Should Know


        Telescopes are optical instruments that are used to magnify far of objects using various forms of lenses and mirrors. The first known telescopes were refracting telescopes which can be dated back to the 17th century in the Netherlands.
        The advancement in technology has made scientists make many discoveries in the world of science-related explicitly to astronomy that has helped for the betterment of human life. There are still many celestial bodies in the universe that are yet to be discovered, and these discoveries can be made by scientists using various forms of telescopes. Here are the basic types of telescopes that are used by modern-day scientists from around the world,


        1) Optical Telescope –
        The Optical Telescope is the most commonly used telescope by astronomers and hobbyists who love to look at the night sky. Optical Telescopes gathers light from the visible wavelength of the Electromagnetic Spectrum. They are widely divided into three types namely refraction, reflection, and catadioptric optical designs.

        2) Solar Telescope –
        The Solar Telescope was formerly known as Photoheliograph. They are used to observe the sun and its frequencies outside the visible spectrum. Solar telescopes have a long focal length which help in giving a higher magnification. McMath-Pierce is the world’s largest solar and unobstructed telescope in the world, and it is located in Arizona, USA.

        3) Radio Telescope –
        Radio telescopes are used to study radio frequencies from various stars, galaxies and other celestial bodies. They can even be used during the day. They have a parabolic antenna attached to them that helps narrow down the radio frequencies. The large part of the radio frequencies consists of the electromagnetic spectrum. In order to listen to various radio frequencies, radio telescopes are made of different size and shapes. Some of the frequencies currently used by radio telescopes are Channel 37, Hydrogen line and The Waterhole.


        4) Ultraviolet Telescopes –
        The Earth’s atmosphere blocks harmful ultraviolet rays and due to this ultraviolet light can only be observed from above the earth. Ultraviolet radiation plays a very important role when it comes to astronomical observation as it reveals the chemical composition, temperature and the densities of various celestial bodies. The most widely known ultraviolet telescope is the Hubble Space Telescope that is still operational in spite of being launched in the 1990s.

        5) Infrared Telescope –
        Infrared Telescopes are used to detect far off astronomical objects in the dusty regions of space. Infrared astronomy is one the most important branch of modern astrophysics as it plays a crucial role in studying the early stage of the universe. Infrared Telescopes use special cameras that are always kept at a cryogenic temperature below -150 degrees. The most famous infrared telescope in the world is the NASA’s Spitzer Space Telescope which was launched in the year 2003 and is still operational till today.

        Most Powerful Telescopes in the World.


        Telescopes are one of the greatest inventions of the human being which have helped scientists lay down a map of the universe.
        The invention of telescopes has helped in discovering new elements from various celestial bodies. Telescopes have helped scientists keep a track over the movements of various stars and plants and they also assist in keeping a lookout for any asteroids that may be in the course of earth’s orbital axis. Here is a list of the most powerful telescopes that are currently being used in and around the globe,

        1) Hubble Space Telescope –
        The Hubble space telescope was launched in the year 1990 by NASA and The European space agency. This telescope is famous for capturing images of the deep field, the Crab Nebula and the Eagle Nebula. A recent trip by the space shuttle mission to the Hubble has upgraded the telescope with new gear that’ll keep it running and viable till 2020.

        2) Keck Observatory –
        The Keck Observatory is located in Mauna Kea, Hawaii. It is owned and operated by Caltech and the University of California. The Keck Observatory is located on a separate island and a two identically shaped building each about 33 ft in diameter. They were built in the, and their advanced adaptive optics paved the way for computer operated mirrors which can be adjusted multiple times per second to make up for the atmospheric disturbances in real time.


        3) Fermi Gamma-Ray Space Telescope –
        The Fermi Gamma-Ray Space Telescope was launched in the year 2008 and is owned and operated by NASA, the U.S Department of Energy, Germany, France, Japan, Italy, and Sweden. It revolves around the lower orbit of the earth. It is used to measure the most powerful radiation in the universe such as Supermassive black holes, collisions of neutron stars and bursts of gamma rays that carry way more energy than anything on earth.

        4) Large Binocular Telescope –
        The Large Binocular Telescope was built in the year 2002 and is a collaboration between US, Germany, and Japan. It is located on Mount Graham, in the Pinaleno Mountains of southeastern Arizona, USA. The Large Binocular Telescope is one among the world’s most advanced optical telescopes as it uses two 8.4 m wide mirror with its center 14.4 m apart.


        5) Spitzer Space Telescope –
        The Spitzer Space Telescope was launched in the year 2003 and is owned by NASA, Caltech, and JPL. Spitzer is an infrared telescope. It is the last of NASA’s four greatest observatories. NASA had estimated that by April 2007 the telescope would exhaust its onboard helium supply, but the helium supply lasted till October, and the Spitzer team were able to compile the stunning images of multiple generations of star formation.