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    Gone are the dark clouds that made “Hubble” blind….

    Astronauts from the Atlantis on Thursday gifted the Hubble Space Telescope with a deeper insight into the universe in the form of a new farsightedness-special camera eye during the arduous spacewalks to fix the renowned observatory. It gives Hubble the power of looking substantially further into the horizontals and verticals of the universe than earlier models.

    “We gave Hubble a hug, and in traditional Hubble fashion it threw us a few curves” said Grunsfeld, who led the spacewalk and along with his partner Andrew Feustel fixed the telescope in a more than seven hour outside expedition.

    Replacing Hubble’s old imager with a $132 million “Wide Field Camera 3” will offer it the power of probing deeper into the evolution of universe and revealing the unsolved mysteries of dark energy and matter. The universe being 13.7 billion years old, it is designed to look back 500 million years post birth of the universe. They also fixed a key computer controller unit that beams images to Earth, sending information about our planet.

    Astronauts John Grunsfeld and Andrew Feustel installed wide field camera and data router on the Hubble Space Telescope. The 7 hour, 20 minute expedition took almost an hour longer than scheduled.

    The other items of Space Agenda:

    The spacecraft Atlantis was launched on Monday on an 11-day shuttle mission to renovate the telescope and extend its life till 2014. Wide field camera installment was among a total of five outside applications in the “Hubble” which was anchored with the claw of the shuttle on Wednesday.

    For Friday the substitution of several batteries and gyroscopes is aforethought. The gyroscope measures the attitude when Hubble is changing its pointing from one target (a cosmic body) to another, helping to control the telescope’s pointing while scientists are observing those targets.

    While the third space walk on Saturday is about the installment of “Cosmic origins Spectograph”. This will allow hubble to have unique looks at weakly radiating cosmic objects in the range of the ultraviolet (UV) to visible radiations.

    The most necessitating task is the repair and equipping of “Space Telescope Imaging Spectrographs” which is scheduled during the seventh day which is no more functioning since 2004. Besides, the astronauts also have to attach about 100 small screws. In addition, they should back the isolating “steel covers” which will protect the very sensitive parts of Hubble against the huge temperature variations, which is normal in space.

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    Hubble will be replaced by the James Webb Space Telescope

    Since 1990 the space telescope “Hubble” sends spectacular pictures of space to the control station on earth. Millions have seen the beautiful images and and have won an idea of how fantastic our universe is. But no later than 2013 it will be disposed. A new technological era will dawn with the “James Webb Space Telescope”. One of it’s main missions: To deliver the answer to one of the greatest questions since mankind looks at stars: How did everything begin?


    For that reason, Webb will be optimized for infrared, a part of the spectrum that is mostly absorbed by the athmosphere – a problem that a telescope in space does not have to deal with. Infrared rays have the ability to “see through” the stellar dust that blocks sight to the regions where stars are born. Sophisticated technology will allow insights never gained before – and the answer to many questions.

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    Which Telescope Type Is Best For Beginners

    Are you amongst the millions of people who have a keen interest in astronomy? Well, if the answer is yes and you want to be able to do astronomy research almost like the professionals, then it is high time that you buy a telescope. A telescope can be defined as an instrument which enables the viewer to view distant objects closely and clearly. For beginners, choosing the right type of telescope can be a big headache. To clear all your confusion and doubts there is an information guide for you – telescopes for beginners.

    Broadly spoken, there are three categories of telescopes determined by their optical design – namely: the refractor, the reflector, and the catadioptric. Given below is a brief insight into each of these types to aid you in the selection of your telescope for beginners.

    The Refractors
    The Refractors are easily distinguishable owing to their long design. They are basically made up of a long tube that holds a large lens in the front, known as the objective lens. The objective lens enables light to pass through it and concentrate it at the back end, where it passes through the eye-piece, enabling the viewer to get a clear picture. The aperture depends upon the size of the objective glass. Refractor type telescopes are recommended as telescope for beginners.

    The Reflectors
    The size of objective lenses can not be increased beyond a certain limit. It was due to this problem that reflector telescopes were designed; these telescopes enable concentration of light at a point using large convex reflectors. Isaac Newton was first to use reflector telescope, that is why this type of telescope is often referred to as Newtonian telescope.

    Dobsonian Telescopes
    A special type of Newtonian telescope is the Dobsonian, it is particularly popular amongst amateur astronomers. Some reasons for that are the very good performance regarding to watching the planets.

    The Catadioptric
    Catadioptrics are also known as compound telescopes as they combine features of both reflector and refractor telescopes. Light first passes through a large, clear lens, called the corrector plate, which tweaks it ever so slightly before reflecting off the primary mirror at the back of the tube.

    As already mentioned refractor telescopes are often recommended as telescopes for beginners. They are very easy to install and can provide a clear view of the sun(with filters, of course as you might hurt your eyes!), moon and stars. At the same time they are economically priced and provide a good beginning knowledge to its user. Once you are comfortable using these telescopes you can upgrade to reflector telescopes and ultimately to catadioptric ones.

    There are many manufacturers available in the market nowadays. Some of the most reputed are Meade telescopes, Galileo telescopes and Celestron telescopes. Celestron telescopes is considered an ideal manufacturer for telescopes for beginners by many. They do not only provide high performance but also a user-friendly designing. The Galileo telescopes are for medium-level users as they requires some adjustment and a professional touch in installation.

    To conclude off it is largely dependent upon the requirements of the users. But as telescopes for beginners, a simple refractive telescope can help you gain first-hand knowledge of telescopes and you can upgrade it later to reflective and compound telescopes which require a good deal of knowledge to work with.

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