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When a stream of charged particles known as the solar wind careens onto the Moon’s surface at 450 kilometers per second (or nearly 1 million miles per hour), they enrich the Moon’s surface in ingredients that could make water, NASA scientists have found.

Two new videos visualize how drastically global temperatures have changed since 1900 — and how much worse they will get by the end of this century.

Although conventional wisdom suggests that poor countries are more likely to bear a disproportionate burden of a worldwide carbon tax on fossil fuels used for electricity and transportation, the potential consequences of such a tax would vary depending on several factors, says new research co-written by a University of Illinois energy and environmental policy expert.

Tropical Cyclone Oma appeared well-organized on satellite imagery as it moved through the Southern Pacific Ocean, just northwest of New Caledonia.

Total human carbon dioxide emissions could match those of Earth’s last major greenhouse warming event in fewer than five generations, new research finds.