An accomplished CalTech astrophysicist with more than four decades of research contributions in galactic astronomy and the study of distant planets was fatally shot in the Antelope Valley.

A Caltech genius was found gunned down on his porch in Southern California, and now authorities are trying to piece together what happened.

A new imaging breakthrough combines ultrasound and light-based techniques to generate vivid 3D images that show both tissue structure and blood vessel activity. Developed by researchers at Caltech and USC,

She won a top prize — getting to present her device to protect hearing devices worn by winter sports participants. Next event: Securing a patent.

Caltech’s new fiber-like photonic chips achieve record-low visible-light loss, enabling more coherent lasers and next-generation quantum and sensing technologies.