life's little mysteries
Why does ice float in water, instead of sinking to the bottom? It has to do with water's density and molecular structure.
The inability to remember your first few years of life is called infantile amnesia. But why does it happen?
There are infinitely many prime numbers, but the biggest one we know of goes by the name M82589933 and contains more than 24 million digits.
Live Science newsletter
Stay up to date on the latest science news by signing up for our Essentials newsletter.