Hubble Space Telescope

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Hubble Space Telescope Since the earliest days of astronomy, all astronomers have been asking the same questions-what’s past Earth, what can’t we see? Astronomers all share a common goal, to answer questions that cannot be easily explained. In 1990, the Hubble Space Telescope was launched into space to orbit the Earth. Since then, many answers have arised. The Hubble’s advanced technology has allowed astronomers to see Earth and space in a way that hasn’t been seen before, even in a different light spectrum. Unlike telescopes on ground, Hubble is able to see past the Earth’s atmosphere. The Hubble Telescope is positioned above the atmosphere which distorts and blocks light that reaches our planet making it difficult for ground telescopes to get accurate pictures. Although the position of the Hubble Telescope plays a great advantage of its clarity, so does its “eyes”. The Hubble uses a system called “Optical Telescope Assembly”. The system consists of two mirrors, support trusses and the openings of the instruments. The mirrors in the system are smooth and curved precisely for reflecting surfaces. The curved mirrors collect incoming light that travels through space. Another advantage to how the Hubble sees is the fact that it doesn’t only see visible light. The telescope uses filters which allow different wavelengths to pass through and fall on a special detector. The detector then produces a “picture” of the star or whatever object in the selected wavelength. The Hubble allows scientists to see what is invisible to the human eye such as objects in ultraviolet and infrared wavelengths. Since the Hubble is flown in space and orbits Earth, extra instruments are required to keep the telescope running smoothly. The telescope acts as a robot or computer in space. It performs tasks that are received from the scientist on the ground. In order to do so, the Hubble

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