NASA - National Aeronautics and Space Administration

What would happen if the sun's light and heat were amplified a thousand times? Scientists know of one planet that experiences just such a climate extreme.

Many people think of the moon as dead, but if you look with a different pair of glasses – at the atomic level – it is very active.

Once presumed to be cooling or stable, NASA scientists have recently confirmed a warming trend on the Antarctic Peninsula.

The first definitive detection of methane in the atmosphere of Mars indicates the planet is still alive, in either a biologic or geologic sense, according to scientists.