This 370-Mile Highway Made of Ice Stretches Through Canada Every Winter

For vast majority of the year, the only way to reach remote but lucrative gold and diamond mines in Canada's northwest is by air. But every winter, something crazy happens. A 370-mile long highway is built almost entirely on ice—and it's strong enough for 70-ton trucks laden with fuel and supplies. » 3/24/15 2:55pm Tuesday 2:55pm

Our Cities Could Become High-Density Solar Power Plants

Solar energy has a dark side. Those gargantuan plants that sprawl out like deconstructed disco balls sacrifice valuable open space and put wildlife, and possibly human lives, at risk. A new study by Stanford researchers says that focusing our solar energy efforts in already-developed urban areas could yield more… » 3/17/15 5:35pm 3/17/15 5:35pm

Welcome to the Rural Town That Wants to Build a Hyperloop Utopia

What do cities look like in the world of Hyperloop transit? Will supersonic travel turn our cities into vast, intermodal suburbs? And what about the edge towns that once bled into the country, fed by car travel—will they empty out and decay, eliminated by a new form of transportation that bypasses them? » 3/02/15 11:20am 3/02/15 11:20am

Why Are These Massive Cargo Ships Trapped at 29 U.S. Ports?

You've probably read about it, even if it didn't really register. Something about a backlog. Something about unions. Imports and exports. Now the dispute that's paralyzing 29 ports on the U.S. West Coast has the potential to affect all of us—and to empty the shelves in countless stores. » 2/19/15 5:00pm 2/19/15 5:00pm

Saudi Arabia Is Building a 600-Mile Wall Along the Iraq Border

Saudi Arabia is building great wall — or rather, a great chainlink fence with razor wire — to "protect against ISIS" in Iraq. And it's not the only country investing in very expensive walls right now, even though they probably won't work. Why? Because walls aren't just about security. They're also powerful symbols. » 2/11/15 1:00pm 2/11/15 1:00pm

An Up-Close Look at the Monumental Task of Building a Bridge

We take giant manmade structures for granted. Whether erected in decades long gone or constructed anew from a distance, they are just there. When Joseph Blum set out to photograph the building of the new Bay Bridge connecting San Francisco and Oakland, he wanted to get face to face with action bringing such a project… » 2/05/15 9:35am 2/05/15 9:35am

Inside the Bunkers Where the US Will Obliterate Its Chemical Weapons

If you were driving across the beautiful southern Colorado landscape near Pueblo, you probably wouldn't even notice them: almost one thousand concrete storage "igloos" burrowed into the landscape. This 23,000-acre complex has stored the remaining biggest cache of chemical weapons in the US since World War II. Now,… » 2/04/15 1:54pm 2/04/15 1:54pm