Cosmic Microwave Background Radiation
When I was younger, in order to receive and interpret radio wave signals as pictorial and audient information analogue television required tuning in. My grandad tried to explain to me that the static fuzz of black and white pixels was an untuned television trying to interpret the universes oldest radiation. I was too young at the time to understand what he meant. Now I have come to appreciate this as the cosmic microwave background radiation (CMBR): The CMBR data interpreted as a universal heat map in the sky What it is it? Predicted to exist in the 1940’s and discovered in the 1960’s, the CMBR is currently the oldest existing radiation in our universe, it is everywhere. The radiation waves are millimetres in length and thus relatively long in the electromagnetic spectrum, they cannot be seen to the naked eye. The image you see above was recorded by the Planck telescope and the associated data was released in 2006. Careful analysis was required in order to remove other wavelengths of ...