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Jun 23 | 7:30 PM Astronomy on Tap

Jul 25 | 8 PM in Cahill Center for Astronomy and Astrophysics Stargazing Lecture

Sep 16 | 4 PM in Noyes 147 (J. Holmes Sturdivant Lecture Hall) Chemical Physics Seminar

Six Girl Scout Brownies stand with Caltech President Thomas Rosenbaum holding a giant representation of the check they donated

Girl Scouts Donate to Caltech for Fire Recovery

Artwork shows swirling colorful patterns that represent light traveling at different speeds through space.

Missing Matter in Universe Found

Orange, black, and white confetti falls on Caltech's newest graduates who are wearing their caps and gowns

Caltech Comes Together to Celebrate 131st Commencement

Photo of the 48-inch Samuel Oschin Telescope

A Missing Link in Magnetic Stars

A black hole is next to a cracked white dwarf in this artwork.

Star Quakes and Monster Shock Waves

Photo of the Large Hadron Collider at CERN

Facilities and Resources

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