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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.
February 24, 2018
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.
February 23, 2018
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.
February 21, 2018
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.
February 18, 2018
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.
February 16, 2018
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.
February 11, 2018
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.
February 9, 2018
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.
February 8, 2018
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.
February 8, 2018
Humans witnessed fire-covered Earth at end of Ice Age
New research suggests that some 12,800 years ago, an astonishing 10 percent of the Earth’s land surface was consumed by fires, thanks to a cosmic impact.
February 7, 2018
