A number of hypotheses have been used to explain how free oxygen first accumulated in Earth’s atmosphere some 2.4 billion years ago, but a full understanding has proven elusive. Now a new model offers ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

Chinese scientists have constructed a numerical model to simulate the Martian atmosphere and thus assist the country's plans to collect rock samples from the Red Planet. The model replicates the ...