WASP-17b is one of the largest exoplanets known, with a diameter 1.5 to 2 times that of Jupiter. Since it's only half as massive, that also makes it one of the puffiest planets.

"WASP-17b is extremely hot … and the pressure where the quartz crystals form high in the atmosphere is only about one-thousandth of what we experience on Earth’s surface," he said.

The exoplanet WASP-17b's atmosphere is full of quartz clouds, according to a new James Webb Space Telescope observations. When you purchase through links on our site, we may earn an affiliate ...

"WASP-17b is extremely hot … and the pressure where the quartz crystals form high in the atmosphere is only about one-thousandth of what we experience on Earth’s surface," he said.

If you could see the clouds on WASP-17b, they might glitter as starlight reflects off the facets of billions of microscopic quartz crystals. A team of astronomers, with help from the James Webb ...

So WASP-17b, one of the lightest exoplanets ever discovered, is actually less dense than a marshmallow. Hunting for a chromium fingerprint. The team of astronomers spotted chromium hydride in the ...

Thousand-mile-per-hour winds are blowing a hail of tiny quartz crystals through the silicate-enhanced, scorching hot atmosphere of a distant gas giant planet called WASP-17b, the James Webb Space ...