Astronomers find biggest super-puff planets yet that are lighter than cotton candy (opens original article in a new tab)

Astronomers found two super-puff exoplanets with extremely low density, lighter than cotton candy, orbiting a star 1,110 light-years away. These rare planets, likely composed of hydrogen and helium, provide insights into planet formation.

• Astronomers discovered two giant exoplanets with densities lower than cotton candy, the lightest known for their size
• The planets, orbiting a star 1,110 light-years away, are composed mainly of hydrogen and helium
• Super-puffs are rare and form in gas-rich disks around young stars, shedding material over time