Illustration of the dynamo mechanism that generates the Earth's magnetic field: convection currents of fluid metal in the Earth's outer core, driven by heat flow from the inner core, organized into rolls by the Coriolis force, generate circulating electric currents, which supports the magnetic field. Credit: Andrew Z. Colvin/wikipedia

Geodynamo Theory: How Earth’s Core Creates the Magnetic Field

Earth

Seismic Tomography: Visualizing Density Anomalies in the Lower Mantle

Trace Fossil

Trace Fossil Ichnology: Reconstructing Ancient Behavior

Continental plates around Greenland.

Earth’s crust was already on the move 3.5 billion years ago...

Eruption of the Piton de la Fournaise on La Réunion on July 31, 2015. (Photo: A. Peltier / OVPF-IPGP)

New method for early warning of volcanic eruptions

Some examples of “geraisites,” named after the state of Minas Gerais where they were found, in their different forms (photo: Álvaro Penteado Crósta/IG-UNICAMP)

Impact-formed glass evidence of cosmic collision in Brazil about 6 million...

Lake Yoa in the context of the central Sahara today and during the early Holocene. Credit: Nature (2026). DOI: 10.1038/s41586-026-10336-7

Sediment core reveals 10,800 years of precipitation history in the Sahara

Graphical abstract. Credit: Journal of Aerosol Science (2026). DOI: 10.1016/j.jaerosci.2026.106767

Diamonds are not a geoengineer’s best friend: Carbon impurities provide a...

The ancient marine amphibians Erythrobatrachus (foreground) and Aphaneramma (background) swimming along the coast of what is now far norther Western Australia 250 million years ago. Credit: Pollyanna von Knorring (Swedish Museum of Natural History), edited

Lost fossils reveal sea monsters that took over after Earth’s greatest...

A Jurassic-aged dinosaur footprint from the Isle of Skye, Scotland, displayed in 5 mm contours from a photogrammetric model. Credit: Tone Blakesley

This AI app can tell which dinosaur made a footprint

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