A Look At The Wide Variety Of Telescopes Used To View Into Space

"A Look At The Wide Variety Of Telescopes Used To View Into Space"," Others think big and remember that the great Hubble Telescope is out there in space, instead. The visual, or optical, telescopes have been around the longest. Galileo did some work on it and made it better. With it, he could see some of the moons of Jupiter. In the 1930's, Karl Jansky was interested in the short-wave radio interference that people doing Trans-Atlantic communications noticed. With it he discovered how many phenomenons on earth created the static. Radio telescopes need to be very large if they are going to override the earthly radio noise to capture astronomical radio signals. Its 27 large antennas work together electronically to bring in cosmic information. Because the light used for these telescopes is affected by the Earth's atmosphere, you will often see them on mountaintops. The first X-ray telescope sent into space by NASA was the Uhuru, in 1970. The mirrors are coated with metals, such as gold. Gamma ray telescopes are also used in space. The way light is detected is through the electrons that are expelled by the gamma rays. The Hubble Telescope has been at the top of the size range for space-based telescopes. Yet, astronomers are looking to build a telescope that would be 100 times more powerful than the Hubble Telescope. The reason there are so many different telescopes needed is that each covers a different part of the electromagnetic spectrum. To get a clear observation of an object in space, it is important to see it in as many different wavelengths as possible. Some work has been done in this direction, but as time goes by, it will become even more important. 

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Telescope