Tag

Ligo

All articles tagged with #ligo

space11 days ago•73 min saved

Listening for Darkness: Could Gravitational Waves Reveal Dark Matter's Signature

A new study proposes that dense dark-matter clouds around spinning black holes could imprint a detectable signal on gravitational waves produced by merging black holes. Researchers analyzed 28 LIGO/Virgo/KAGRA events and found one—GW190728—whose waveform may carry such an imprint, though not a definitive detection. If true, this could provide a new way to probe dark matter using upcoming gravitational-wave observations and detector improvements, with the results published in Physical Review Letters.

via Space|

#black-holes #dark-matter #gravitational-waves

science1 month ago•5 min saved

LIGO Hints at Possible Subsolar Primordial Black Hole

Researchers analyzing a LIGO-detected gravitational-wave signal propose it may come from a primordial black hole with subsolar mass, offering a potential direct test of PBH existence and a possible link to dark matter, though more detections are required for confirmation.

via ScienceAlert|

#dark-matter #gravitational-waves #ligo

science1 month ago•2 min saved

LIGO Signals Point to Primordial Black Holes from the Big Bang

A LIGO detection involving an object lighter than a solar mass challenges standard stellar-black-hole formation, with researchers proposing a primordial black hole created in the early universe as the explanation. If confirmed, PBHs could account for dark matter, but further detections and next‑gen observatories like LISA and Cosmic Explorer are needed to build stronger evidence.

via Universe Today|

#cosmology #dark-matter #gravitational-waves

science3 months ago•2 min saved

Crystal-Clear Gravitational Wave Confirms Einstein’s General Relativity

A record-high-quality gravitational wave signal from a binary black hole merger (GW250114) produced multiple ringdown tones that independently yield the same black-hole mass and spin, providing a precise test of general relativity that passes, while underscoring the ongoing pursuit of quantum gravity and related gaps in our understanding.

via Universe Today|

#black-holes #general-relativity #gravitational-waves

science3 months ago•5 min saved

Record-Breaking Gravitational Wave Reaffirms Einstein’s Relativity

Scientists detected the loudest gravitational wave signal to date, GW250114, from a black-hole merger roughly 1.3 billion light-years away. The exceptionally clear signal lets researchers test Einstein’s general relativity with unprecedented precision, including the ringdown phase and multiple vibration tones, reinforcing GR and propelling future gravitational-wave astronomy with next‑generation detectors like LISA.

via The Daily Galaxy|

#black-holes #general-relativity #gravitational-waves

science3 months ago•98 min saved

Record-Breaking Gravitational Wave Tests Gravity — and Finds Einstein Right Again

Scientists detected GW250114, the loudest gravitational-wave event yet, from a pair of about 30-solar-mass black holes merging around 1.3 billion light-years away, recorded by LIGO with unprecedented clarity thanks to detector upgrades. The signal allowed detailed tests of general relativity, including two primary ringdown tones and a newly identified overtone, all matching GR predictions and Hawking’s area theorem. This strengthens GR’s validity at extreme gravity and points to future tests with next‑generation detectors (Einstein Telescope, Cosmic Explorer) and space-based LISA.

via Live Science|

#black-holes #general-relativity #gravitational-waves

science6 months ago•4 min saved

Scientists Uncover Groundbreaking Image of Black Hole Pairing

Scientists propose that magnetic fields during stellar collapse can eject mass from black holes, explaining the formation of unexpectedly large black holes within the 'mass gap' and potentially resolving the mystery of a recent, unusual black hole merger detected by LIGO.

via Gizmodo|

#black-holes #ligo #magnetic-fields

science6 months ago•16 min saved

Can Weber Bars Detect Gravitational Waves?

The article explains that Weber bars, early devices designed to detect gravitational waves, are not practical for modern detection due to their small size and sensitivity limitations. Current detectors like LIGO use laser interferometry to successfully observe these waves, which originate from massive cosmic events. While Weber's approach was pioneering, advancements have made it obsolete for detecting the faint, high-frequency gravitational waves produced by most astrophysical sources today.

via Big Think|

#detecting-gravitational-waves #gravitational-waves #history-of-gravitational-wave-detection

science6 months ago•3 min saved

Scientists Discover Rare Second-Generation Black Holes Confirming Einstein's Predictions

Scientists have detected two pairs of merging black holes, with the larger black holes in each pair likely being 'second-generation' black holes formed from previous mergers, providing evidence of hierarchical black hole formation and confirming Einstein's predictions through gravitational wave observations.

via Live Science|

#black-holes #einstein #gravitational-waves

science7 months ago•5 min saved

Scientists Detect Unique Gravitational Waves from Black Hole Mergers

Scientists detected gravitational waves from two newborn black holes formed by previous mergers, providing new insights into black hole formation, general relativity, and particle physics, with one event revealing a black hole spinning in the opposite direction of its orbit for the first time.

via Space|

#black-holes #gravitational-waves #ligo

science7 months ago•3 min saved

Black Hole Mergers Confirm Einstein and Hawking's Theories

October 2025 marks ten years since the first direct detection of gravitational waves by LIGO, confirming Einstein's predictions. These waves are ripples in space caused by massive objects like black holes and neutron stars, detected through laser interferometry in observatories in the US and abroad. The article highlights the science behind detection, recent discoveries, and ways the public can participate in gravitational wave research.

via NASA Science (.gov)|

#black-holes #gravitational-waves #ligo

science7 months ago•6 min saved

Black Hole Mergers Confirm Einstein and Hawking's Theories

Recent black hole merger detections by LIGO provide the clearest evidence yet supporting Einstein's general relativity and Hawking's area theorem, confirming black holes are simple objects characterized by mass and spin, and offering insights into the fundamental nature of space-time and quantum physics.

via ScienceDaily|

#black-holes #einstein #gravitational-waves

science8 months ago•7 min saved

Breakthroughs in Gravitational Wave Research and Black Hole Discoveries

New observations of black hole mergers by LIGO have confirmed key predictions of Einstein's general relativity, including the simplicity of black holes described by just mass and spin, and Hawking's area theorem, providing deeper insights into the nature of black holes and space-time.

via SciTechDaily|

#black-holes #einstein #gravitational-waves

science8 months ago•3 min saved

Daylight Saving Time Disrupts Our Cosmic Perspective

A new preprint suggests that daylight savings time can indirectly affect gravitational wave detection by altering human activity patterns, which in turn impacts the sensitivity and data quality of observatories like LIGO, potentially introducing systemic biases in gravitational wave astronomy.

via Gizmodo|

#astronomy #data-bias #daylight-savings-time

science8 months ago•6 min saved

Nobel Laureate Physicist Rainer Weiss Passes Away

Rainer Weiss, a Nobel laureate physicist, played a pivotal role in the detection of gravitational waves through the LIGO observatory, confirming Einstein's century-old prediction and advancing our understanding of the universe. His work involved designing highly sensitive laser interferometers to measure minuscule ripples in space-time caused by cosmic events, marking a major milestone in astrophysics.

via The Times|

#astrophysics #gravitational-waves #ligo