Long before Siri, GPS, and well-worn road atlases, mariners relied on ancient, time-tested navigational tools such as stick charts.

The Bering land bridge holds vital clues to the story of the Americas’ first inhabitants. A new project may rewrite the history books.

We usually think that exploration and settlement of outer space are all about technological innovation, but we’ll need more than that to do it right.

In the rugged landscapes of the American Southwest, select cohorts of incarcerated people are temporarily allowed out of prison to fight wildfires. But are they being rehabilitated or exploited?

We’ve already left permanent marks on other worlds. Do we have a responsibility to protect the solar system?

What is it about islands that makes big creatures turn small?

On Fiji’s islands, shifting sea levels have left a tangled legacy of conflict and survival. We should take note.

A bomb clearance team in Laos eagerly buys bush meat from local hunters. Then they realize they’re eating threatened and endangered species.

Trendy ride-sharing services may revolutionize travel in the country’s congested cities. But uncertainty and lack of trust are defining features of the growing gig economy.

While most of New Orleans has recovered, disaster is a part of life for residents of the Lower 9th Ward.