Taking Dinosaur Temperatures with Eggshells

A team of Caltech researchers has measured the body temperatures of a wide range of dinosaurs, providing insight into how the animals may have regulated their internal heat.

Wet Paleoclimate of Mars Revealed by Ancient Lakes at Gale Crater

New evidence indicates that Gale Crater on Mars was filled with water-borne sediment, and excavated, in a shorter time than previously thought, leaving the base of Mount Sharp behind.

Alumnus Arthur McDonald Wins 2015 Nobel Prize in Physics

Arthur B. McDonald (PhD '70), director of the Sudbury Neutrino Observatory (SNO) in Ontario, Canada, and Takaaki Kajita, at the University of Tokyo, Kashiwa, Japan, have shared the 2015 Nobel Prize in Physics for the discovery that neutrinos can change their identities as they travel through space.

Summer Interns Return with a World of Experiences

Caltech undergraduate students returned to campus this week, many after spending the summer working at companies in biotechnology, technology, and finance, among other fields. These students have had the opportunity to learn firsthand about the career opportunities and paths that may be available to them after graduation.

New Courses for the 2015–16 School Year

The start of the 2015–2016 school year brings not only new freshmen and faculty, but also new courses.

Getting the Lead Out

Caltech geochemist Clair Patterson (1922–1995) helped galvanize the environmental movement 50 years ago when he announced that highly toxic lead could be found essentially everywhere on Earth, including in our own bodies—and that very little of it was due to natural causes.

Flowing Electrons Help Ocean Microbes Gulp Methane

The key to any healthy relationship is communication. Two types of microbes near the ocean floor use direct electron transfer to coordinate their symbiotic relationship—which results in the consumption of large amounts of methane from deep ocean vents.

Where to Land Mars 2020: A Conversation with Ken Farley

Ken Farley, the project scientist for NASA's next Mars rover, a mission called Mars 2020, and the W.M. Keck Foundation Professor of Geochemistry at Caltech, talks about how the Mars 2020 landing site selection process is shaping up.

Yung Receives Prize for Planetary Science Research

Yuk Yung, the Smits Family Professor of Planetary Science, has received the 2015 Gerard P. Kuiper Prize from the American Astronomical Society's Division for Planetary Sciences.

High School Students Visit for Women in STEM Preview Day

More than 100 high school seniors and their families got an inside look at the impact Caltech women are making in the disciplines of science, technology, engineering, and mathematics.

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