News | The Division of Physics, Mathematics and Astronomy

12/17/2025

2025 Year in Review

Caltech News

As 2025 draws to a close, we look back at some of the Caltech-led discoveries and innovations from throughout the past year.

12/08/2025

Kip Thorne to Deliver the 132nd Commencement Address

Kip Thorne (BS '62)—theoretical astrophysicist, Distinguished Alumnus, and Nobel laureate—will deliver the keynote address at Caltech's 132nd annual Commencement ceremony on June 12, 2026.

Kip Thorne seated against a black background

10/28/2025

Colliding Black Holes Might Have Formed from Earlier Cosmic Smashups

Two recent detections have given the international LIGO-Virgo-KAGRA collaboration new insights into black hole formation and evolution

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

09/10/2025

Ten Years Later, LIGO is a Black-Hole Hunting Machine

Whitney Clavin

LIGO, Virgo, and KAGRA celebrate anniversary, announce verification of Stephen Hawking's Black Hole Area Theorem.

Swirling, colorful, wisps of gas surround a black hole.

09/04/2025

Artificial Intelligence Helps Boost LIGO

Whitney Clavin

New algorithm hushes unwanted noise in LIGO, may lead to more black hole discoveries.

hanging mirrors are seen with lasers between them and ripples in space-time in the background

07/14/2025

LIGO Detects Most Massive Black Hole Merger to Date

Gravitational waves from massive black holes challenge current astrophysical models

Side-by-side-by of the twin LIGO detector buildings.

01/21/2025

Three Caltech Scientists Receive Presidential Early Career Awards

Cynthia Eller

Katie Bouman, Katerina Chatziioannou, and Nick Hutzler receive Presidential Early Career awards.

Winners of the PECASE award in 2025, from left to right, Katie Bouman, Katerina Chatziioannou, and Nick Hutzler

04/08/2024

Unusually Lightweight Black Hole Candidate Spotted by LIGO

LIGO has detected a candidate black hole with a mass that falls within a so-called mass gap between the heaviest known neutron stars and the lightest black holes.

Artwork of merger between neutron star and black hole.

11/21/2023

Software in Science

Cynthia Eller

The Schmidt Academy at Caltech trains software engineers and helps provide scientists with the software tools they need to accelerate pathbreaking scientific research.