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Colliding Black Holes Might Have Formed from Earlier Cosmic Smashups
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.
Ten Years Later, LIGO is a Black-Hole Hunting Machine
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.
Artificial Intelligence Helps Boost LIGO
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
LIGO Detects Most Massive Black Hole Merger to Date
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.
Three Caltech Scientists Receive Presidential Early Career Awards
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
Unusually Lightweight Black Hole Candidate Spotted by LIGO
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.
Software in Science
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.
five students sit around a table talking and drinking beverages
LIGO Surpasses the Quantum Limit
10/23/2023

LIGO Surpasses the Quantum Limit

Whitney Clavin
Researchers have achieved a landmark in quantum squeezing.
Picture of the source of squeezed light at LIGO, after it was pumped with green light.
Breaking Ground on the Quantum World
06/27/2023

Breaking Ground on the Quantum World

Ann Motrunich
A new interdisciplinary laboratory will probe the nature of space and time.
A duotoned green montage includes quantum physics experimental equipment, images related to fundamental physics and astrophysics, and a preliminary building concept.
Physicists to Listen Closely to Black Holes Ring
05/25/2023

Physicists to Listen Closely to Black Holes Ring

Whitney Clavin
New methods will allow for better tests of Einstein’s general theory of relativity using LIGO data.
Artwork of a ringing black hole
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