Fifty years after President Kennedy’s call to put a man on the moon, the space agency is at a crossroads.

NASA must look beyond the earthly demands of deficit cutting and politics to chart its course.

Mountaintop removal mining is just one facet of a debate that is gearing up to be as heated as health care reform, as lawmakers consider climate-inspired legislation that would fundamentally redefine the nation’s relationship with coal.

“The coal industry is under attack and West Virginia is ground zero for that attack,” an industry representative says.

A motorcycle taxi driver named Eagle introduced me to Cambodia when I visited Phnom Penh ten years ago. I went back and found him six years later.

The Beaufort Sea’s coastline is disintegrating at alarming speed.

Permafrost cliffs are tumbling into the ocean and melting away, and now the process is caught on a new video of time-lapse photographs.

“It could be related to some of the changes that are happening and that have been reported in the Arctic, like declining sea ice in the summer and increasing sea temperatures,” says a scientist studying the coast.

A pre-eminent black Harvard University professor and the white police sergeant who arrested him for disorderly conduct in his own home sat down last night for a beer with Barack Obama, the US president, to discuss the incident that has sparked intense debates on race relations.

Although the Uighur cause, which she has spent a lifetime championing, is finally drawing the global attention she believes it has always deserved, Rebiya Kadeer has yet to see any gains.

The Mississippi River Delta is drowning, according to new research that predicts the surrounding coastline will be significantly reshaped in coming decades.

“There’s just not enough sediment to sustain the delta plain,” said the study’s author.

Why would Jon Huntsman Jr give up his governorship and a potential 2012 presidential bid to be Obama’s ambassador to China?

Data from eastern Taiwan show a strong link between the storms and so-called slow earthquakes, which could be relieving pressure and so preventing larger temblors, researchers say.

Washington-area Uighurs offer rooms in their homes to the detainees, many of whom only speak Turkic.