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leila123456:

A radio telescope is used to study radio waves that come from stars and galaxies. What type of wave is a radio wave?

leila123456:

I don't understand what kind of telescope

QuestionCoveBot:

Wdym?

leila123456:

A telescope that sees radio waves

QuestionCoveBot:

You don't understand what that telescope is?

leila123456:

yes

QuestionCoveBot:

Just as optical telescopes collect visible light, bring it to a focus, amplify it and make it available for analysis by various instruments, so do radio telescopes collect weak radio light waves, bring it to a focus, amplify it and make it available for analysis. We use radio telescopes to study naturally occurring radio light from stars, galaxies, black holes, and other astronomical objects. We can also use them to transmit and reflect radio light off of planetary bodies in our solar system. These specially-designed telescopes observe the longest wavelengths of light, ranging from 1 millimeter to over 10 meters long. For comparison, visible light waves are only a few hundred nanometers long, and a nanometer is only 1/10,000th the thickness of a piece of paper! In fact, we don’t usually refer to radio light by its wavelength, but by its frequency. - NRAO

QuestionCoveBot:

Does that help?

leila123456:

Yes thanks

QuestionCoveBot:

I also give thanks to NRAO.

leila123456:

ok

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