It's a packed week, with Earth Day, Arbor Day, The City Nature Challenge and more!

This project can help us learn about the history of the Universe.

Humans have left evidence of their passing through America’s great rift for more than 10 millennia.

The number zero was a relatively recent and crucial addition − it allows numbers to extend in both directions forever.

Explore the enchanting world of orcas, where stunning beauty meets remarkable intelligence through unique adaptations and ...

The latest science on how blood levels of HDL, LDL and more relate to cardiovascular health ...

A new study suggests that Titanoboa wasn’t the only snake that loomed large in antiquity.

The namesake behind Netflix's new sci-fi series is an unsolvable physics problem that has baffled scientists for centuries.

It has been a while since we've had a giant explosive volcanic eruption, but Ruang off the coast of Indonesia's Sulawesi ...

For generations, doctors recommended this diet for a variety of tummy troubles. But does the BRAT diet really work — and is ...

Does venting help? Research shows it may actually worsen your anger. Experts share coping strategies for dealing with anger ...

How did early humans evolve? Interspecies competition between hominins played a role in diversity and survival.