Stubborn Chile Volcano Rumbles On

Stubborn Chile Volcano Rumbles On

Nearly five months after its first eruption, these satellite images reveal that Chile's Puyehue-Cordón Caulle volcano continued to erupt in late October. Do you know what tephra and lahars are?

Do You Have What It Takes to Fly a Drone?

Do You Have What It Takes to Fly a Drone?

A New Mexico State University professor is studying unmanned aircraft system (UAS) pilot performance and behavior, with the aim of creating guidelines for commercial UAS flights.

Icy Nor'easter Buries Northeastern States

Icy Nor'easter Buries Northeastern States

As if Hurricane Irene wasn't enough, Mother Nature dealt the U.S. Northeast another blow in late October, dumping as much as 32 inches of wet, unseasonable snow, leaving millions without power.

Hundreds Dead from Record Cambodia Floods

Hundreds Dead from Record Cambodia Floods

Before-and-after satellite images paint a clear picture of the worst flooding in Cambodia in more than a decade. In addition to more than 200 people dead, at least 34,000 were evacuated.