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Aug 16 | 8 PM in Cahill Center for Astronomy and Astrophysics Stargazing Lecture

Sep 9 | 8:15 AM in Cahill, Hameetman Auditorium KISS Short Course - Sample Return from all across the Solar System

Sep 25 | 11 AM in Online Event High Energy Theory Seminar

Artist's concept of the NEOWISE spacecraft in space.

NASA's Infrared Survey Telescope Ready to Retire

students on Caltech campus

For the First Time, Women Make Up 50% of Caltech's Incoming Undergraduate Class

Artwork of a dark matter flying ahead of normal matter in galaxy cluster collision.

Dark Matter Flies Ahead of Normal Matter in Mega Galaxy Cluster Collision

This illustration depicts a binary star system consisting of a dense neutron star and a normal Sun-like star (upper left).

Sun-Like Stars Found Orbiting Hidden Companions

A crowd of families stands under trees and shade umbrellas on campus

Math Celebration at Caltech Builds Community

Photo of the Large Hadron Collider at CERN

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PMA COVID-19 Updates & Announcements

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