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Home This plot compares the colors of planets in our solar system to exoplanet HD 189733b. The exoplanet’s deep blue color is produced by silicate droplets, which scatter blue light in its atmosphere. (Image Credit: NASA, ESA, and A. Feild (STScI)) This plot compares the colors of planets in our solar system to exoplanet HD 189733b. The exoplanet's deep blue color is produced by silicate droplets, which scatter blue light in its atmosphere. (Image Credit: NASA, ESA, and A. Feild (STScI))

This plot compares the colors of planets in our solar system to exoplanet HD 189733b. The exoplanet’s deep blue color is produced by silicate droplets, which scatter blue light in its atmosphere. (Image Credit: NASA, ESA, and A. Feild (STScI))

This plot compares the colors of planets in our solar system to exoplanet HD 189733b. The exoplanet's deep blue color is produced by silicate droplets, which scatter blue light in its atmosphere. (Image Credit: NASA, ESA, and A. Feild (STScI))

This plot compares the colors of planets in our solar system to exoplanet HD 189733b. The exoplanet’s deep blue color is produced by silicate droplets, which scatter blue light in its atmosphere. (Image Credit: NASA, ESA, and A. Feild (STScI))

This artist’s concept shows exoplanet HD 189733b orbiting its yellow-orange star, HD 189733. NASA’s Hubble Space Telescope measured the actual visible-light color of the planet, which is deep blue. (Image Credit: NASA, ESA, and G. Bacon (STScI))
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