A surprising yellow haze of sulfur dioxide in the atmosphere of a gas “dwarf” exoplanet about 96 light years away from our own solar system makes the planet a prime target for scientists trying to understand how worlds are formed. A surprising yellow haze of sulfur dioxide in the atmosphere of a gas “dwarf” exoplanet about 96 light years away from our own solar system makes the planet a prime target for scientists trying to understand how worlds are formed. Planetary Sciences Phys.org – latest science and technology news stories