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San Andreas Fault

San Andreas Fault: History, Danger, and the Next Big Quake

Jan Otte

The San Andreas Fault isn’t just a crack in California’s crust; it’s a bomb that is going off. This tectonic boundary between the Pacific and North American plates runs for more than 800 miles (1,300 km) from the Salton Sea to Cape Mendocino. It has changed the shape of California’s land and its future in ...

light didn't emerge unfettered after the Big Bang. Here, we see the phases following the Big Bang (top left), about 13.8 billion years ago, to present day (lower right).

Was the Early Universe Dark or Full of Light?

Jan Otte

For most of human history, the night sky has been a place where stars, planets, and faraway galaxies can be seen. But what was there before the first stars came to life? Was the universe full of light when it was young, or was it a dark void? The answer is much more interesting than ...

Al Hajar Mountains

Ghost Plume Beneath Oman May Have Moved India

Jan Otte

An ancient geological force has been quietly shaping the planet for millions of years deep beneath Oman’s rough terrain. Scientists have found a “ghost” plume, a column of hot rock rising from the Earth’s core. This plume may have been very important in changing the direction of the Indian tectonic plate when it crashed into ...

Inca Cord

Inca Cords May Unlock 500-Year-Old Weather Data

Jan Otte

In a remote village high in the Peruvian Andes, there is a 68-meter-long (224-foot) knotted cord that is the biggest of its kind ever found. Khipus were the Inca Empire’s advanced way of keeping records. They encoded everything from tax records to poetry. But researchers now think they might have something even more amazing: a ...

iRonCub3

Watch This Humanoid Robot Fly Like Iron Man

Jan Otte

For a long time, science fiction has teased us with images of humanoid robots flying through the air like superheroes in comic books. That fantasy is getting closer to coming true now. The Italian Institute of Technology (IIT) has revealed iRonCub MK3, the first humanoid robot in the world that can take off vertically with ...

Hells Canyon

Scientists Uncover Secret History of Hells Canyon

Jan Otte

Hells Canyon, a winding cut through the American West, has kept its origins a geological mystery for hundreds of years. Scientists have been trying to figure out how this 1.5-mile-deep (2.4 km) chasm, carved by the Snake River, came to be for a long time. It runs through Oregon, Idaho, and Washington. How could the ...

A red plastic cup on the shore

Plastic Bag Bans Are Working—And the Ocean Has the Data to Prove It

April Joy Jovita

A new peer-reviewed study published in Science has confirmed what environmental advocates have long suspected: banning or taxing plastic bags significantly reduces their presence in beach litter. Drawing on nearly four decades of data from Ocean Conservancy’s International Coastal Cleanup, the research shows that jurisdictions with plastic bag policies saw a 25 to 47 percent ...