View from space: US city lights

Here's a satellite image of the United States at night.

Significant storm to affect the U.S. on Christmas

A Major storm system will bring an outbreak of severe storms across the U.S. southeast and a major winter storm across the center of the country on Christmas Day.

Gift giving: Wild dolphins to humans in Australia

Scientists think that gift giving among wild dolphins at the Tangalooma Island Resort in Australia is a form of play behavior.

I’m dreaming of a white Christmas!

Congratulations! You survived the end of the world, and Christmas is around the corner. Time to focus on that popular question: will we have a white Christmas?

Temperature records from nature reaffirm climate warming

In a large compilation, scientists used used 173 independent datasets - from natural sources such as ocean sediments - to show warming over the past century.

The aurora borealis and the coming Solar Maximum

Right now, there's huge excitement among those of us who hunt for the aurora borealis, also called the northern lights.

2012 extraordinary year for wildfires in US

Check out this map. The year 2012 has been extraordinary for wildfires in the United States.

2012 set to be warmest year ever recorded in US

2012 is likely to break 1998 for the warmest year ever recorded since record keeping began in the contiguous United States.

Invasive boa constrictors are spreading across Puerto Rico

It is illegal to own a boa constrictor on Puerto Rico. Scientists are trying to figure out where these snakes are coming from.

6.4-magnitude earthquake off coast of Baja California

The Pacific Tsunami Warning Center did not issue a tsunami warming following the earthquake, which occurred at 2:36 a.m. Pacific Standard Time.