Atmospheric haze contains the clues to their blues.
Neptune and Uranus are both ice planets in our solar system, but they possess different shades of blue. While Uranus has a pale cyan color, Neptune is a more vibrant blue. Astronomers from NASA have finally figured out why these two similar planets have different hues. The, found that haze particles accumulating in a planet’s atmosphere can whiten its appearance, which could explain Uranus’s paleness.
. To fill in the gaps, the team analyzed data collected from several telescopes—the Gemini North telescope, the NASA Infrared Telescope Facility, and the Hubble Space Telescope—and created an atmosphere model to mimic those of Neptune and Uranus.Previous research on the atmospheres of both planets could not explain the difference in color because they focused only on Neptune’s and Uranus’ appearance in specific wavelengths.
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