The haze, a phenomenon that can also be seen on Earth and Mars, may be caused by gravity waves.
Pluto's atmosphere is engulfed with bands of blue haze, which is a reaction of sunlight on methane and other molecules that on Pluto's atmosphere.
The researchers found that the far-off planet is surrounded by a pale orange haze, which is similar to the one that once engulfed the young earth. The newly found clues could be a sign of possible life in outer space, according to the researchers.
In a recent study researchers found that as the atmosphere becomes warmer, it will also become hazier, which ultimately impacts future air quality.