What new planets has the James Webb Telescope discovered?

The James Webb Space Telescope hasn't exactly found brand new planets hiding in our backyard, but it has looked at distant worlds so closely that we feel like we are meeting them for the first time. It is like trading a blurry postcard for a high-definition photo of a neighbor's house.

Imagine you are looking at a glass of lemonade through a dirty window. You know there is liquid, but it looks mushy. Webb acts like wiping that window clean. It uses spectroscopy to analyze the light from stars passing behind planets. This tells us exactly what gases are in the planet's atmosphere.

Think of it like smelling soup to guess its ingredients without tasting a spoonful. Webb has detected water vapor, carbon dioxide, and even clouds on faraway planets called exoplanets. These aren't just dots of light anymore; they are complex places with weather and air, much like Earth but maybe hotter or colder.

Webb didn't discover the planets themselves because astronomers had already found them using other tools. Instead, Webb gave us a chemical fingerprint. It helped confirm that some planets thought to be rocky are actually fluffy gas giants, and vice versa.

For example, Webb studied a planet called WASP-96 b. Before Webb, we knew it existed. Now, we know its atmosphere is clear and bright, not cloudy and dark. This helps us understand how planets form and whether they might hold water, which is crucial for finding life someday. We are mapping the solar system next door with much sharper eyes, turning guesses into solid facts about what those distant worlds are really made of.