Strange ‘super-puff’ planets as big as Jupiter but lighter than cotton candy found (opens original article in a new tab)

Astronomers have discovered two giant planets that are lighter than cotton candy, called 'super-puffs,' which are the lightest known planets of their size and may help scientists understand planet formation better.

• Astronomers discovered two giant planets, TOI-791 b and TOI-791 c, that are lighter than cotton candy
• The planets have densities lower than candy floss and are the lightest known planets of their size
• Scientists suspect the planets are made mostly of hydrogen and helium and will use NASA's Webb Space Telescope to confirm their composition
• Super-puffs are rare and thought to form from gas and dust disks around young stars
• Fewer than 40 super-puffs have been identified among nearly 6,300 confirmed exoplanets
• Researchers are still unclear about the exact formation process of these low-density planets