You've Heard of Vantablack. Scientists Just Created 'Super White', And It's Very Cool - ScienceAlert

While ultra black materials can today absorb more than 99.96 percent of sunlight, this new super white coat can reflect 95.5 percent of all the photons that hit it.

Other "heat rejecting paints" we currently have can only reflect 80 to 90 percent of sunlight and cannot achieve lower-than-ambient temperatures.

"It is a persistent task to develop a below-ambient radiative cooling solution that offers a convenient single-layer particle-matrix paint form and high reliability," says mechanical engineer Xiulin Ruan at Purdue University in Indiana.

The matrix of the paint also has a vibrational resonance peak, which ensures a high amount of heat is reflected outwards - at a rate much higher than what other cooling paints can achieve.

Creating a single-layer paint that can reflect heat directly out into space without requiring an energy input would be a huge win for the climate crisis, as cooling is usually powered by fossil fuels and has a big overall impact on global warming.