An optical telescope focuses and concentrates visible light; radio telescopes focus and concentrate electromagnetic radiation (which means, "light") in the radio part of the spectrum.
Radio telescopes collect radio waves. Optical telescopes capture visible light waves.
The Hubble Space Telescope has a number of instruments, but the primary one is an optical telescope.
"Optical", in this case, simply means that they work with light.
They are optical telescopes.
Different telescopes utilize different parts of the electromagnetic spectrum. Two types of optical telescope are refracting and reflecting. There are also different kinds of radio telescope investigating different bandwidths from the infra red to the untra violet
optical
Reflector.
See things that don't shine in the visible spectrum.
There are telescopes used to detect radio waves and others to detect infrared radiation.
No, the images produced by a radio telescope and an optical telescope are not the same. Optical telescopes capture visible light and produce images that resemble what we see with the naked eye, revealing details of celestial objects in visible wavelengths. In contrast, radio telescopes detect radio waves, which can provide different information about astronomical objects, often revealing structures and phenomena that are invisible in optical wavelengths. The resulting images from both types of telescopes represent different aspects of the universe and require different methods of interpretation.
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The surface of a radio telescope doesn't have to be as flawless as the surface of an optical telescope because the radio telescope is collecting radio waves, something that will not be affected by faults in the glass. Optical telescopes, on the other hand, are collecting light, where faults in the surface can interfere with the image.