Meet the Milky Way’s puffiest planets

Astronomers have discovered two "superpuff" planets that are as big as Jupiter but as light as cotton candy, orbiting a distant sunlike star. These fluffy worlds expand our understanding of planetary diversity. The find highlights the universe’s surprising variety, offering new clues about how planets form.
Two newfound “superpuff” planets, illustrated orbiting a sunlike star over 1,000 light-years from Earth, are as big as Jupiter and as dense as cotton candy.
Science News