https://www.scientificamerican.com/article/hubble-detects-alien-stratosphere/ >A huge, superhot alien planet has a stratrosphere, like Earth does, a new study suggests.  >"This result is exciting because it shows that a common trait of most of the atmospheres in our solar system — a warm stratosphere — also can be found in exoplanet atmospheres," study co-author Mark Marley, of NASA's Ames Research Center in California's Silicon Valley, said in a statement.