Tagged: National Aeronautics and Space Administration (NASA)

The last couple of years have certainly felt unusually hot in many parts of the U.S., but are they really all that unusual?

Many people wonder whether a warming climate is turning up the temperature or whether it's all just part of the normal variation in the weather. Among scientists, there's a growing view that these latest heat waves are indeed a result of climate change.

Joe Palca describes the mood of NASA Mars scientists in the wake of the landing overnight, what the latest pictures and data are from the surface of the red planet and what mission scientists are going to do next with Curiosity.