Hot Jupiters, a class of large gas giant exoplanets, appear to get bigger as they are heated over billions of years by their stars
Source:
https://www.newscientist.com/article/2246375-some-hot-giant-planets-get-larger-as-they-are-heated-by-their-stars/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home