In pioneering observations, NASA’s James Webb Space Telescope has revealed a planet where sand falls in the form of rain.
The planet Wasp-107b is located 200 light-years away in the constellation Virgo, and has already caught the attention of astronomers because it is very large but light.
The latest observations give an unprecedented glimpse into an alien world beyond our solar system, characterized by clouds of silicate sand, rain, scorching temperatures, strong winds and the distinctive smell of burning sulfur dioxide.
James Webb takes observations of light from its host star to the next level by measuring starlight filtered through the planet’s atmosphere. Because different elements absorb different wavelengths of light, the spectrum of starlight indicates which gases are present.
Wasp-107b has a similar mass to Neptune but is about the size of Jupiter, and its wide, spreading nature allows the James Webb Telescope to delve into its atmosphere.
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