Dan Harris, Deputy Chief Forecaster at the UK Met Office, explained in an interview with the British newspaper "Daily Mail" why the sun appeared blue today, Thursday. He stated, "We currently have a strong westerly influence on our weather, which can bring air all the way from North America to Europe... This air currently contains smoke from Canadian wildfires. The combination of smoke and high-altitude clouds in the atmosphere can scatter sunlight, creating unusual color changes."
Each visible color has a different wavelength. NASA explains: "The color violet has the shortest wavelength, at about 380 nanometers, while red has the longest wavelength, at around 700 nanometers." As sunlight travels toward Earth, it naturally scatters through particles in the air, such as dust and smoke. The shorter the wavelengths, the easier it is for the light to scatter. This explains why the sky is blue.
This morning's blue sun from Great Yarmouth was shared on social media, highlighting the unusual phenomenon.
