Using a new analytical technique, Caltech researchers studying the rock record uncover new information about the sulfur cycle on early Earth and what that could mean for the rise of oxygen in the atmosphere.
Caltech oceanographer Andrew Thompson, who uses autonomous underwater instruments and numerical models to study ocean currents and eddies, has been awarded a Packard Fellowship for Science and Engineering.
Results from NASA's Kepler planet-hunting mission have indicated that the most common planets in the galaxy are super-Earths—those that are bigger than Earth but smaller than Neptune. Heather Knutson and her colleagues are using space telescopes to try to find out more about these worlds.
Methane-breathing microbes that inhabit rocky mounds on the seafloor could be preventing large volumes of the potent greenhouse gas from entering the oceans and reaching the atmosphere, according to a new study by Caltech researchers.