Why are Uranus and Neptune Different Colors? Haze - by spacewriter
Voyager gave astronomers a taste of what’s “out there”. That led to more long-term observations using other ground-based and space-based observatories. Those studies reveal details about the weather at those worlds and what it does specifically to turn Uranus so pale.Why so blue on Neptune and not so blue on Uranus? As the headline says: hazes. But, scientists needed to explain the existence and activity of hazes in the upper atmospheres of ice giant planets. So, they created a model.
Irwin’s team analyzed a set of observations of both planets in ultraviolet, visible, and near-infrared wavelengths . The data came from the Near-Infrared Integral Field Spectrometer on the Gemini North telescope as well as archival data from the NASA Infrared Telescope Facility. Images and data from the NASA/ESA Hubble Space Telescope also contributed to the study. Together the data revealed surprising structure and activity in both atmospheres.
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