John Metcalfe

Stare into the Glowing Mouth of the Bardarbunga Volcano

NASA satellites capture the fiery action inside Iceland's lava-gusher.

The Sharing Economy Comes to the Umbrella

A high-tech beacon encourages not-at-all awkward encounters with wet strangers.

Making Ghostly Art From Detroit's Sewer Steam

Take a trip to a nightmare world full of giant pigeons and animal-headed businessmen.

It's a Historic Year for Temperature Extremes

In the U.S., we're living in two countries: one scourged by heat and the other bitten by cold.

Who's Willing to Move? The Young, the Poor, and Those Who Already Live in Cities

More results from the Atlantic Media/Siemens State of the City Poll. 

Dangling From Extremely Tall Structures as Urban Sport

Watch daredevil and frequent arrestee James Kingston hang by one hand from a giant Indian crane just because he can.

Visualizing the Shaking Rage of Iceland's Bardarbunga Volcano

This is what a swarm of earthquakes looks like underneath the massive stratovolcano.

The Urban Environment Is Creating Super-Sized Spiders

It's helping them spawn tons of spider eggs, too.

The Arctic Is Losing an Alarming Amount of Snow

Snow depth on sea ice has fallen by as much as half in the past 50 years.

Take a San Francisco Gentrification Quiz from 1985

Signs that your neighborhood has become upscale: computer stores, needlepoint boutiques... exotic-bird shops?

Help Science Identify a Kajillion Astronaut Photos of Cities

"Night Cities" is an ambitious project to create an atlas of urban space photography.

Forget Vertical Farms, This Is a Vertical Rice Paddy/Fish Nursery/Transit Center/Nuclear Plant

No sustainable detail is left out of this proposed Hong Kong skyscraper.

How Trash-Covered Beaches End Up Costing Everyone Money

In California, washed-up coastal garbage is having a big economic impact for Orange County, says a new report.

Brooklyn Wins New York's (Literal) Rat Race

MIT visualizes how the city is swarming with rodent-based complaints.

Pre-Ground Coffee Can Contain Corn, Soybeans, Twigs, Dirt

That's the unappetizing news from researchers analyzing java's chemistry.

Tonight's Perseid Meteor Shower Should Be Visible in Even the Most Light-Polluted Cities

The best shower of the year is known for its intense, colorful "fireballs."

Baltimore Gets a Giant Bus Stop Shaped Like the Word 'Bus'

But how do you get to the top part of the big B?

This Is Supposedly the Urban Bike of the Future

If trends continue, we'll all soon be riding extremely well-designed mopeds.

The Hardest Video Game in History Is About Street Art

To thoroughly win, you'll need to actually go visit every continent.