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Mar 9 | 4 PM in Online and In-Person Event High Energy Physics Seminar

Mar 9 | 4 PM in Cahill 370 Astronomy Tea Talk

Mar 9 | 8:30 PM Astronomy on Tap

Two black circles appear to merge like bubbles with stars in the background.

Gravitational-wave observatories release new catalog of detections

Mars Curiosity rover set against a red Martian landscape.

The Rocks Remember: What the Rovers Have Taught Us About Habitability on Mars

Carl Grillmair in a white shirt.

Caltech Mourns the Passing of Carl Grillmair (1959–2026)

Three professors in a collage of images.

Three Professors Named 2026 Sloan Fellows

A wispy red orb with a white mass in the middle.

The Quiet Formation of a Black Hole

Photo of the Large Hadron Collider at CERN

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