1. (sometimes capital) new, recent, or a new or modern form or development: neoclassicism; neocolonialism. 2. (Geological Science) (usually capital) the most recent subdivision of a geological period: Neogene. [from Greek neos new]. Also, esp. before a vowel, ne-.
Although optical telescopes are the type most commonly used for stargazing and amateur astronomy, lots of astronomical research is done on telescopes that look at other wavelengths of light. Each of these wavelength ranges shows us something unique about the universe and allows us to view events and objects that can't be seen with human eyes.
What tools do astronomers use and what do these tools do? The main tools used by astronomers are telescopes, spectrographs, spacecrafts, cameras, and computers. Astronomers use many different types of telescopes to observe objects in the Universe. Some are located right here on earth and some are sent into space. Just about everything we know about the Universe comes from the study of the light emitted by objects in space. Astronomers use these tools (especially telescopes) very often. Astronomers also use a lot of physics and mathematics in their work.