Mars is tantalizingly similar to Earth in many ways, but especially in its surface features, which often resemble Earth ...

On a cold, ancient Mars, rivers flowed and a lake the size of the Mediterranean Sea swelled under the protection of thick ice ...

By 3.6 billion years ago, Mars should have become too cold for liquid water, but something kept the rivers flowing.

New research suggests that about 3.6 billion years ago, Mars featured vast water flows and a lake rivaling the size of the ...

The continuing release of carbon dioxide into the atmosphere is a major driver of global warming and climate change with ...

Although carbon dioxide is the most prevalent and potent greenhouse gas, it is not the only major one — and many of its ...

The U.S. Department of Energy estimates that reaching its climate-policy energy goals will rely on capturing and storing ...

Nitrogen doping and electron beam irradiation strengthen carbon nanotube fibers by reducing molecular slippage during ...