Pink sun over Spain: the physics that debunks the conspiracies

Haze and light scattering explain the pink sun that has caught attention in Spain. The data debunks the conspiracy theories.

English · Original discussion in Spanish · Published

Pink sun in Spain: basic physics, not a "colour shift"

Recently, dozens of videos have shown a pinkish sun over several Spanish cities. Social media went into overdrive: from the global agenda to a glitch in the Matrix, not to mention a publicly funded "colour shift". The explanation, as is nearly always the case, is more boring: suspended particles.

Light scattering comes into play when the air contains wildfire smoke, haze or Saharan dust. The particles filter out blue light and let red light through, tinting the sun and the sky. No nearby fire is needed: haze travels in layers between 1,500 and 5,000 metres above the ground and crosses the Atlantic in two days, so the phenomenon can occur without any flames nearby.

In the face of physics, conspiracy theories did their thing, fuelled by the habit of looking at a phone before looking at the sky. Reality, however, is stubborn: the atmosphere, the particles and the angle of the light explain everything without any need for hidden agendas.

The same Saharan dust that baffles half of Spain travels more than 5,000 kilometres to the Amazon and fertilises the rainforest every year. The sky turning pink is not a system hack; it is the planet working. Something scarier than any conspiracy.

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Summary of a discussion on Burbuja.info - Foro de economía, actualidad y política., translated from Spanish and reviewed before publication. Read the full discussion (16 replies).

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