Fun Fact: Saturn Could Float in Water!

Saturn, the second-largest planet in the Solar System, is so light for its size that it could float in water—if you could find a bathtub big enough! This gas giant is mostly made of hydrogen and helium, giving it an incredibly low density of just 0.687 grams per cubic centimeter, which is less than water. For comparison, Earth's density is about 5.5 grams per cubic centimeter. While it’s unlikely we’ll ever test this theory, Saturn’s ability to "float" highlights how unique and diverse the planets in our Solar System really are!