Saturn has such a low density that if placed in water it would float.
Identical twins’ genes are not identical. Twins may appear to be cut from the same cloth, but their genes reveal a different pattern.
Looking at the Sun can trigger a sneeze. For some people, bright lights mean big sneezes.
Coal ash is more radioactive than nuclear waste.
The largest supply of alcohol in the universe is in deep space. Astronomers have spotted an alcohol cloud in the Milky Way that measures 288 billion miles across.