It’s a fundamental requirement for life on Earth. But how does water exist on such a forbidding world as the Moon?

What makes a relationship last when feelings fade or circumstances change? Can you force yourself to love someone you hate or don’t care about?

Texas, Florida and 7 other states have no income tax, but they make up for it with other taxes. Sometimes those taxes mean low-income residents pay a larger percentage of their money in taxes.

Liquid water, breathable air and a sustainable food supply are three of the essentials Mars would need for people to live comfortably there.

Corn has its roots in Mexico about 9,000 years ago.

It’s not a competition, but if it were, Saturn would be winning.

The answer depends in part on where you live. If it’s extremely hot and humid, the health risks are much higher.

Underwater construction is a complex and difficult task, but engineers have developed several ways to build underwater … mostly by not building underwater at all.

It’s hard to look for something you’ve never seen before – and that might not even exist. But you have to start somewhere.

It can be easy to mistake feelings like fear and anger as hate. When biases are acted out in harmful ways, however, speaking up can help stop hate from getting worse.