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What does a radio telescope do?
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Objects in space give off a variety of electromagnetic waves, such as light waves, radio waves and X-rays. A radio telescope detects radio waves coming from space. It can also detect quasars and other objects that cannot be seen with an optical telescope (one that collects light waves). A radio telescope has a large dish aerial that collects radio waves and bounces them into a receiver, which converts them into electrical signals. | | The world's largest radio telescope, the Very Large Array, is in New Mexico, in the United States. |
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Previous:
Back
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Book:
1001
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Section:
Space
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Chapter:
Galaxies
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