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Visionary grant helps Caltech build new labs for gravitational wave science and quantum measurement.
12/06/2021

Visionary grant helps Caltech build new labs for gravitational wave science and quantum measurement.

Ann Motrunich
A new grant enables construction of laboratories at Caltech that will integrate gravitational-wave science and quantum precision measurement.
Tabletop optics in a laboratory that steer laser light as it is used to measure vibrations in a glass disk that serves as an experimental stand-in for a mirror in the Laser Interferometer Gravitational-Wave Observatory (LIGO). The experiment aims to improve LIGO mirror coatings. New coatings c twan reduce background noise in LIGO's mirrors by a factor of two, thereby increasing the volume of space that LIGO can probe by a factor of eight.
Extending LIGO's Reach Into the Cosmos
09/29/2021

Extending LIGO's Reach Into the Cosmos

Whitney Clavin
New mirror coatings will increase the volume of space LIGO can probe in its next run.
Pinkish mirror coating on a test disk.
Saul Teukolsky Receives Dirac Medal
08/10/2021

Saul Teukolsky Receives Dirac Medal

Whitney Clavin
Saul Teukolsky and colleagues honored for theoretical work on black holes.
Saul Teukolsky
LIGO–Virgo–KAGRA finds elusive mergers of black holes with neutron stars
06/29/2021

LIGO–Virgo–KAGRA finds elusive mergers of black holes with neutron stars

The gravitational network confirms first known collision of a black hole and neutron star.
Artwork of a neutron star–black hole merger
LIGO and Virgo to Receive IEEE Milestone Plaques
02/01/2021

LIGO and Virgo to Receive IEEE Milestone Plaques

Whitney Clavin
On February 3, 2021, the IEEE will host an online event to bestow its Milestone awards to the gravitational-wave observatories of LIGO and Virgo.
LIGO Hanford, LIGO Livingston and Virgo.
2020: A Year In Review
12/17/2020

2020: A Year In Review

Reflecting on community achievements in a year of international upheaval
Composition of images from highlighted stories throughout 2020
LIGO Hanford Breaks Ground for New Exploration Center
10/23/2020

LIGO Hanford Breaks Ground for New Exploration Center

Whitney Clavin
New state-of-the-art education facility in Washington State will teach students and the public about the marvels of gravitational waves and LIGO
conceptual design of proposed LIGO Hanford Observatory STEM Exploration Center
A "Bang" in LIGO–Virgo Detectors Signals Most Massive Gravitational-Wave Source Yet
09/02/2020

A "Bang" in LIGO–Virgo Detectors Signals Most Massive Gravitational-Wave Source Yet

Whitney Clavin
A binary black hole merger likely produced gravitational waves equal to the energy of eight suns.
Illustration of a hierarchical black hole merger
Black Hole Collision May Have Exploded with Light
06/25/2020

Black Hole Collision May Have Exploded with Light

Whitney Clavin
Astronomers have seen what might amount to the first light ever detected from a black hole merger.
Artist's concept of a supermassive black hole, with a binary pair of black holes in its disk.
LIGO-Virgo Finds Mystery Object in "Mass Gap"
06/23/2020

LIGO-Virgo Finds Mystery Object in "Mass Gap"

Whitney Clavin
The LIGO–Virgo gravitational-wave network has identified an object that is either the heaviest known neutron star, or the lightest known black hole.
Artwork showing a black hole merging with a black hole or neutron star.
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