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Created page with "==Key Stage 4== ===Meaning=== The '''cosmic microwave background''' ('''CMB''') is the radiation left over from the big bang which comes from all direc..."
==Key Stage 4==
===Meaning===
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===
: The '''CMB''' shows that at some point in the past all the [[matter]] in the [[Unvierse]] was at roughly the same [[temperature]] everywhere. This shows that the [[Universe]] must have once been very small.
===Meaning===
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===
: The '''CMB''' shows that at some point in the past all the [[matter]] in the [[Unvierse]] was at roughly the same [[temperature]] everywhere. This shows that the [[Universe]] must have once been very small.