Science 10 with CSS teacher

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Technology now exists to look at the sky by focussing on forms of radiation other than light. As a result we have gained a different perspective and have increased our knowledge of the Universe. Since the sky was first viewed using microwaves in 1965, it has been found that the Universe is filled with microwave radiation. This is now known to be traces of radiation coming from the remnants of the Big Bang. The energy of the Big Bang has been red shifted into microwaves because the Universe is expanding. This light is seen today as the Cosmic Microwave Background Radiation (CMBR) - the ‘afterglow’ of the Big Bang.