Hydrogen and oxygen escaping from Earth’s upper atmosphere and combining on the moon could be one of the sources of the known lunar water.

New findings from NASA's Juno probe orbiting Jupiter provide a fuller picture of how the planet's distinctive and colorful cloud processes.

Researchers from Chile directly measure the amount of both water and carbon monoxide in the atmosphere of a planet in another solar system.

2.5 to 4 billion years ago, a time known as the Archean eon, Earth’s weather could often be described as cloudy with a chance of asteroids.

Nuclear war would cause many immediate fatalities, but smoke from the resulting fires would also cause climate change lasting up to 15 years

Tiny iron nanoparticles unlike any found naturally on Earth are nearly everywhere on the moon—and scientists are trying to understand why.