How naked mole rats stay cancer-free

Another piece in the puzzle of how these wrinkled, hairless, buck-toothed creatures live such long and cancer-free lives.

Drought worsens across US Southwest, southern Plains

A lack of precipitation across the southern and western United States has led to growing drought this winter.

Watch an octopus get spiky

Octopuses and cuttlefish have an amazing defense tactic. They can erect 3D spikes from their skin, hold them for an hour, then retract them and swim away.

Violent blasts from Indonesia’s Sinabung volcano

Mount Sinabung on the Indonesian island of Sumatra erupted violently on February 19, 2018. See video of the dramatic first moments of the eruption.

Where narwhals like to hang out

Narwhals are among the ocean's most elusive creatures. But new research may shed light on where these enigmatic marine mammals like to congregate.

New study: Sea level rise accelerating

Global sea level rise has been accelerating in recent decades, rather than increasing steadily, according to a new study based on 25 years of NASA and European satellite data.

Day Zero approaches as Cape Town’s water runs out

Cape Town - the South African city of 3.7 million people - is on the verge of running out of water. Day Zero is the day the taps will get turned off.

What is radiocarbon dating?

At a very steady rate, unstable carbon-14 gradually decays to carbon-12. The ratio of these carbon isotopes reveals the ages of some of Earth's oldest inhabitants.

View of Winter Olympics from space

Ready for the Olympics? Here's a look at the sites of the 2018 Winter Games, the South Korean cities of Pyeongchang and Gangneung, from above.

Harvard study links breast cancer to light at night

Artificial light has transformed the night sky, a change researchers continue to link to health problems.