San Andreas Fault

Site of the next major earthquake on the San Andreas Fault?

Mixteca-style mask decorated with turquoise mosaic from the collections of the Smithsonian Institution-National Museum

True origin of ancient turquoise

Left: This is a digitalized 3D natural rock, Center: Spheres cloud representing pore topological features, Right: Persistence diagram.

Novel method for investigating pore geometry in rocks

A wet-dry scenario in a prebiotic hot spring or tidal pool.

Simple chemical process that may have led to the origin of...

The best-preserved fossil of the group includes the skull, forelimbs, part of a backbone and a partial hind limb of a small, juvenile frog now known as Electrorana limoae.

Amber fossils provide oldest evidence of frogs in wet, tropical forests

This silk-wrapped tick subsequently was entombed in amber that may have dripped from a nearby tree.

For 100 million years, amber freezes a tableau of tick’s worst...

Sediment core with gas hydrate

Masses of methane from mud volcanoes

Postdoctoral Fellow Theodore Them (left, holding an extinct fossil sample) and Assistant Professor Jeremy Owens (right, holding a rock core sample).

Volcanic activity, declining ocean oxygen triggered mass extinction of ancient organisms

Brasilestes stardusti

Oldest mammal in Brazil lived in the age of dinosaurs

International collaboration studies the predictability of earthquakes

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