New research shows that early land plants started influencing Earth’s climate hundreds of millions of years earlier than ...

Van Allen spacecraft re-enters over the Pacific with 1 in 4,200 chance of causing injury NASA's Van Allen Probe A has re-entered Earth's atmosphere eight years earlier than expected, with a 1 in 4,200 ...

A 40-year study shows the Sun’s internal structure subtly shifts between quiet cycles, offering clues to future solar ...

A strip of cool water stretches west from South America along the equator, helping set the pace for some of the planet’s most important weather swings. That Pacific “cold tongue” helps steer the El ...

Scientists have long debated what causes glacial/interglacial cycles, which have occurred most recently at intervals of about 100,000 years. A new study reported in the March 24 issue of Nature finds ...

The massive slabs of slowly-moving rock just under Earth's surface — known as tectonic plates — may drive bursts of marine biodiversity every 36 million years, a new study finds. As tectonic plates ...

BOULDER–Challenging conventional wisdom, new research finds that the number of sunspots provides an incomplete measure of changes in the Sun’s impact on Earth over the course of the 11-year solar ...

It is not pleasant to imagine that human activity is making the planet uninhabitable, but we typically think of this in terms of greenhouse gases, rising sea levels or acidifying the oceans. We aren't ...

How does climate change influence the planet’s nitrogen cycle? This is what a recent study published in Nitrogen Cycling hopes to address as a team of researchers investigated climate change’s impact ...