Meet the American artist who braves Finland's freezing temperatures to paint portraits on giant floating blocks of ice in the Baltic Sea. David Popa, 29, creates the giant portraits by swimming out to ...

Why does ice float in water, instead of sinking to the bottom? It has to do with water's density and molecular structure. When you purchase through links on our site, we may earn an affiliate ...

Water's unique property of ice floating on its liquid form is crucial for life on Earth. This phenomenon, caused by the ...