The search for enhanced angular resolution consequently source detection and spectral resolution for extra information on source behavior has ever being ongoing since the first telescope was invented. The test of working in this complex energy range makes further demands on instrument developers than any other fields. It is expected that future telescopes will make use of more highly developed solid-state technology to prevail over some of these problems resulting to a provision of great, sensitive telescopes which will promote study of astronomy as an essential part of cosmological research.
The Hubble Space Telescope (HST), compared to standard ground telescopes can see much clearly and focus sharply at all wavelengths from the near-infrared to the ultraviolet. Its images are 5- 20 times sharper than standard grounds telescopes, whose vision is more often than not distorted by the atmosphere.