Mini Neptune is a shrunken version of the giant gas planet

New research done on planet GJ 1214B
Washington. US scientists have done new research on the planet GJ 1214b revolving around a star 40 light years away. This mini Neptune is a shrunken version of the giant gas planet. Earlier, when this planet was seen, a thick layer of clouds was seen on it, which prevented the view inside it. But the James Webb Space Telescope is the most powerful telescope ever built, equipped with an infrared heat camera. According to NASA researchers, GJ 1214b has an atmosphere made of steam. Due to this, NASA researchers believe that this planet is full of water. Both its day and night temperatures were captured as it orbited, data from which enabled astronomers to work out what it's made of. GJ 1214b's temperature changed dramatically.
It found that the temperature reached 535 °F during the day and then 100 °F at night. From Earth's point of view, it can be understood that there is a strong heat in the same day and then there is a snow storm in the same night. For nearly a decade, all we knew about this planet was that its atmosphere was cloudy or hazy, Rob Jelem, an exoplanet researcher at NASA's Jet Propulsion Lab, said in a statement. JWST's mid-infrared instrument was used to map the temperature of the planet.