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Robot space probes and telescopes
They have a much better view with no distortion caused by air.
Telescopes are used to see things that are far away from earth. Using telescopes we can see things that are millions of miles away. Most of the telescopes are on Earth but some of them are in space such as the Hubble Space Telescope.
All space telescopes are unmanned - unless you want to count the small telescopes on the Shuttle or IIS as space telescopes.
In space, however, telescopes are able to get a clearer shot of everything from exploding stars to other galaxies. Another disadvantage for ground-based telescopes is that the Earth's atmosphere absorbs much of the infrared and ultraviolet light that passes through it.
Telescopes on Earth have to look through the atmosphere (air) which distorts the image. Telescopes in space dont have to look through the atmosphere and so the image is a lot clearer.
They must be launched in to space because there is a better veiw in space than from earth.
Telescopes have helped discover many things in space that are not visible such as some of the outer planets of our solar system.
Gamma, X-ray, Optical, and Radio
hubble space station
There are telescopes you can see stars with. Sattelite Probes flyby
they use space probes,satellites,and of coarse,telescopes.