How the bluest asteroid in the solar system got its color

How the bluest asteroid in the solar system got its color


An unusual blue-tinged asteroid likely got its trademark color from intense sunlight, new research finds, solving a decades-old mystery.

The blue color of asteroid Phaethon has puzzled scientists ever since the space rock’s discovery in the early 1980s. Now, a new study suggests that Phaethon’s unique orbit is responsible for the space rock’s odd hue.





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