In the typical textbook picture, volcanoes, such as those that are forming the Hawaiian islands, erupt when magma gushes out as narrow jets from deep inside Earth. But that picture is wrong, according to a new study.

Caltech researchers have developed a novel way to visualize proteins generated by microorganisms in their natural environment—including the murky waters of Caltech's lily pond.

This summer, Caltech junior Kevin Li has been working with computational scientists and seismologists to refine the Community Seismic Network (CSN) by developing a machine-learning system that can accurately estimate the magnitude of an earthquake within seconds of its detection.

On September 1, John Grotzinger, the Fletcher Jones Professor of Geology, became the new chair of the Division of Geological and Planetary Sciences (GPS).

Caltech researchers work to make sure that NASA's newly launched satellite provides accurate data about carbon dioxide levels in our atmosphere.

An interview with Konstantin Batygin, who recently joined the Caltech faculty as assistant professor of planetary science.

Ken Farley, Caltech's W.M. Keck Foundation Professor of Geochemistry and chair of the Division of Geological and Planetary Sciences, is serving as project scientist for Mars 2020. We recently sat down with him to talk about the mission and his new role.