The telescope has a large diameter concave main mirror with a hole at it's centre.This is known as a Cassegrain configuration. Light from the stars enters the telescope tube and is reflected from the main mirror back up the tube and is then reflected by a small secondary mirror back down through the hole in the main mirror to a focus point behind it.
An array of cameras and spectroscopes share the light by means of a beam splitter at the main focus. The cameras digitally process the images they recieive using charge couple devices known as CCD's or electronic eyes. The digital signals are labelled and sent to a microwave dish which transmit the images back to Earth.
The telescope is powered by solar cells and has a lens cap that automatically closes whenever the sun is a danger to the sensitive cameras.The telescope is remotely pointed and stabilised using gyroscopes and it is these moving parts that are prone to failure.
Despite early problems the Hubble telescope a shuttle space mission was sent to repair the telescope and fit an optical fix known a 'Costar'. The mirror had been ground with an error in the measurement system and ever since has been a fantastic success. It was given major overhaul earlier this year in one of the last shuttle missions and is to be replaced by the James Webb Space Telescope (JWST)in the next decade.
"Optical", in this case, simply means that they work with light.
A Galilean Telescope is also an Astronomical Telescope so it is just a subset of Astronomical Telescopes.
a prism, and the telescope
Galileo did not invent the telescope. The Italian physicist and mathematician improved on an existing spyglass design to create a more powerful one: a refracting telescope that he then used to study the night sky.
In space, there is no interference by Earth's atmosphere.
"Optical", in this case, simply means that they work with light.
A Galilean Telescope is also an Astronomical Telescope so it is just a subset of Astronomical Telescopes.
it doesnt
You walk up to the telescope and click on it but you can't move it!
Copernicus did not use a telescope in his astronomical work.
More than 10,000 scientists built the Hubble Telescope. They were assigned to work on different parts of the Hubble Telescope.
telescope
a prism, and the telescope
micorpope
As far as I know, there is no "optical radio telescope". There are, separately, optical telescopes (which work with visible light), and radio telescopes (which work with radio waves).
Most famously he improved the telescope. His studied Astronomy with his telescope.
Copernicus did not use a telescope in his astronomical work, and probably never owned one.