Geochemistry

Remnants of a liquid layer of magma near Earth's core, formed in the first few hundred million years of the planet's history, may still persist today as odd anomalies in the mantle.

Learn about the climate changes that followed the end-Permian extinction, allowing select species to take over the planet's oceans.

A team of researchers at the Bayerisches Geoinstitut has conducted high-pressure-temperature laboratory experiments to determine the crystal structure and density of the iron-sulfide phase in the Martian core.

Tropical riparian ecosystems in what is now North China recovered within as little as 2 million years after the end-Permian extinction, one of the most devastating bio-crises in the history of life, destroying both marine and terrestrial ecosystems.

New scans of the bottom of the Japan Trench reveal extensive burrow structures and evidence of regular "reset" events that help sea creatures survive in the ocean's deepest reaches.

Deep trenches are the likely source of carbon on the surface of Uranus' moon Ariel and might be connected to a subsurface ocean, a new study suggests. The post Are grooves on Uranus' moon Ariel evidence for an ocean? first appeared on EarthSky.

Four MIT professors and an additional alumnus were honored with 2024 National Medals of Science and of Technology and Innovation. Moderna, a Kendall Square biotech firm with deep MIT roots, was also recognized.

The Lafayette meteorite was discovered in a drawer at Purdue University in 1931, with no clear indication of how it got there. A new analysis of the rock reveals evidence of liquid water on Mars 742 million years ago.

The symbiotic relationship between corals and their photosynthetic algal partners (photosymbionts) goes back at least to the Devonian (385 million years ago), according to new research.

Merging rivers may have thrust Earth's highest mountain upwards by as much as 164 feet.

Sophisticated analysis of tiny bubbles of ancient gas trapped in volcanic rocks, combined with new geophysical modeling, has cast new light on long-held assumptions about the deep Earth.

Sharks have been losing teeth for 400 million years. Here's a guide to uncovering some of these plentiful fossils across the country

Piles of mine waste that loom above the historic Colorado mountain town of Leadville are a...

For every ton of ore milled, a ton of waste would remain—minus a few ounces of gold.

The movement of carbon dioxide (CO2) from the surface of the ocean, where it is in active contact with the atmosphere, to the deep ocean, where it can be sequestered away for decades, centuries, or longer, depends on a number of seemingly small processes.

The ChemCam instrument, developed at Los Alamos National Laboratory, recently zapped its laser for the 1 millionth time on Mars. Sitting on top of NASA's Curiosity rover, ChemCam has been helping make groundbreaking discoveries since 2012.

Scientists propose that large chunks of gold could form from earthquakes' pressure

New geoarchaeological research shows that metalworking in ancient Egypt led to significant contamination in a nearby port.

August 22, 2024 5:00 PM EDT | Source: Li3 Lithium Corp Exploration work on its 100% Northern Lights Copper Project to begin immediately Prior small-scale copper production in the early 1900s Historic reports document copper mineralization grading 3% to 12% Cu Recent sampling confirms copper mineralization (1% to 19% Cu) over widths up to 4 […]

The Perseverance rover gathered sediments that can only be analyzed on Earth to retrieve more detailed information on Mars' water history.