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Cosmic Microwave Background

An in-depth look at the cosmic microwave background (CMB).

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COBE Satellite

NASA's Cosmic Background Explorer satellite was launched to explore the cosmic microwave background radiation. It has discovered fluctuations in that radiation which are important to big bang ...

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Microwaves

Info on microwaves. While there are some radar bands from 1,300 to 1,600 MHz, most microwave applications fall in the range 3,000 to 30,000 MHz (3-30 GHz).

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Cosmic Microwave Background

Detailed information on this topic and why it is important.

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Cosmic Microwave Background radiation

A page describing this topic and why it is so interesting.

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What's the Cosmic Microwave Background?

A brief article on how polarisation affects the CMB which led to the discovery of gravitational waves.

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Cosmic Background Radiation

A uniform background radiation in the microwave region of the spectrum is observed in all directions in the sky. It shows the wavelength dependence of a "black body" radiator at about 3 Kelvins ...

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The first fractions of a second after the Big Bang

A great description of the Planck mission to study the first seconds of the universe which we can now see as the cosmic microwave background.

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Secrets of the early universe

Read how satellite observations of cosmic microwave background can tell us a lot about how the universe formed.

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Planck

Catch up with the latest news, videos and info on the Planck mission, which is studying the Cosmic Microwave Background – the relic radiation from the Big Bang.

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