Difference between revisions of "Cosmic Microwave Background"
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[[File:CMB.png|right|300px|thumb|This image shows the [[temperature]] variations of the early [[universe]]. The different colours represent around 10<sup>-4</sup>K [[temperature]] variation.]] | [[File:CMB.png|right|300px|thumb|This image shows the [[temperature]] variations of the early [[universe]]. The different colours represent around 10<sup>-4</sup>K [[temperature]] variation.]] | ||
===Meaning=== | ===Meaning=== | ||
| − | The '''cosmic microwave background''' ('''CMB''') is the [[radiation]] left over from the [[Big Bang Theory|big bang]] which comes from all directions in | + | The '''cosmic microwave background''' ('''CMB''') is the [[radiation]] left over from the [[Big Bang Theory|big bang]] which comes from all directions in space. |
===About The Cosmic Microwave Background=== | ===About The Cosmic Microwave Background=== | ||
: The '''CMB''' shows that at some point in the past all the [[matter]] in the [[Universe]] was at roughly the same [[temperature]] everywhere. This shows that the [[Universe]] must have once been very small. | : The '''CMB''' shows that at some point in the past all the [[matter]] in the [[Universe]] was at roughly the same [[temperature]] everywhere. This shows that the [[Universe]] must have once been very small. | ||
Revision as of 12:15, 4 April 2019
Key Stage 4
This image shows the temperature variations of the early universe. The different colours represent around 10-4K temperature variation.
Meaning
The cosmic microwave background (CMB) is the radiation left over from the big bang which comes from all directions in space.
About The Cosmic Microwave Background
- The CMB shows that at some point in the past all the matter in the Universe was at roughly the same temperature everywhere. This shows that the Universe must have once been very small.