Monday, October 12, 2009

What is a radio telescope?

Almost all objects in the Universe emit radiation at radio wavelengths. A radio telescope is an instrument that is able to receive and record radio waves from space. The record of the signal is then analysed by astronomers, using sophisticated software. In order to collect incoming radio waves, the instrument is equipped with one or more antennas. Karl Jansky accidently built the first radio telescope while working at Bell Telephone Laboratories.

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