When scientists talk about Earth’s history, they often mention huge numbers– billions of years, shifting continents, and ...

mechanistic understanding of sediment formation, deposition, and lithification (particularly of carbonates and other chemical sedimentary rocks); (ii) analysis of terrestrial paleoenvironmental ...

They are very tiny, but they are a key source of information when it comes to Earth's evolutionary history: pollen grains are ...

More than 1.1 billion years ago, an immense geological fault called the Midcontinent Rift began to form beneath what is now ...

A new study offers key insights into Mars' water cycle, but the findings are based on seismic data from just one region, ...

Our results suggest that dioctahedral smectite formed via near-surface chemical weathering driven by fluctuations in lake level and atmospheric infiltration, a process leading to the redistribution of ...

A mineral called siderite found abundantly in rock drilled by a NASA rover on the surface of Mars is providing fresh evidence ...

Flowers have been brightening Earth much longer than scientists previously believed—by at least two million years. In a new ...

A new study reveals that the aerobic nitrogen cycle in the ocean may have occurred about 100 million years before oxygen began to significantly accumulate in the atmosphere, based on nitrogen isotope ...

Co-paired stars, or stars that travel together, can provide insights into processes that other stars can't. Differences in their brightness, orbits, and chemical composition can hint at different ...