Found all over the world, calcite is the most stable form of calcium carbonate and is the main mineral found in limestone.

Billions of years ago, Earth was home to extreme environments, including intense UV radiation, frequent volcanic eruptions, ...

Concrete is Earth’s second-most-used material behind water, creating about four times more CO2 emissions than planes. Some companies are trying to revolutionize the industry.

When Billy Crystal regularly hosted the Academy Awards, he liked to begin the show with a montage where he was inserted into the nominated films. The 2000 opening leaned more on Hollywood history ...

This image from Augustana University researcher Caleb DeWitt displays a colorized scanning electron micrograph of calcium carbonate crystals—specifically, the polymorph known as vaterite.

What are soda crystals, also known as soda ash and washing soda, and how do you use it? Soda crystals are made of sodium carbonate, also known as soda ash and washing ash. Don't confuse sodium ...

Soda crystals are made of sodium carbonate, also known as soda ash and washing ash. Don't confuse sodium carbonate with baking soda's official name, sodium bicarbonate. Even though they look the ...

Billy Crystal and his wife, Janice, have been married for more than 50 years Kaitlin Stevens is a contributing writer at PEOPLE. She has been working at PEOPLE since 2022. Her work has also ...