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Monday, May 16, 2022

Gravitational waves


Discovery of a new source of gravitational waves: Collisions between Neutron Star and Black Hole

June 30, 2021 8:32 am

Professor Somak Raychaudhury, Director of Inter University Centre for Astronomy and Astrophysics (IUCAA), told The Indian Express that the development was expected for a long time but was not confirmed.

Gravitational waves detected from black hole collision event 800 million years ago

June 23, 2020 10:41 pm

The gravitational signal from this merger event travelled for 800 million years through the universe and arrived at the network of two advanced-LIGO detectors – at Hanford, Washington and Livingston, Louisiana, USA and the advanced-Virgo detector in Cascina, Italy, in the wee hours of August 15 2019, just past 2.40 am IST.

Gravitational waves from unequal mass black holes detected

April 21, 2020 10:47 am

Named GW190412, the merger was collectively detected on April 19, last year. The highly-sensitive signals were detected using Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo, located in the US and Italy, respectively.

Gravitational waves leave detectable mark: Study

May 10, 2019 10:11 pm

Gravitational waves -- ripples in the fabric of spacetime -- leave behind plenty of "memories" that could help detect them even after they have passed, according to a study.

Four new gravitational waves detected from black hole mergers

December 05, 2018 5:25 pm

The position of the binary black holes, located by the LIGO and VIRGO observatories, were spotted 2.5 billion light-years from Earth, and identified with a precision of 39 square degrees.

Signs of supermassive black hole mergers found

October 29, 2018 2:53 pm

Gravitational wave telescopes have been able to find evidence of the merging of smaller black holes since 2015, by measuring the strong bursts of gravitational waves that are emitted when binary black holes merge.

Albert Einstein's gravity theory passes extreme test: Study

July 08, 2018 3:30 pm

Einstein's understanding of gravity, as outlined in his general theory of relativity, predicts that all objects fall at the same rate, regardless of their mass or composition.

Gravitational wave event likely signaled birth of black hole: NASA

June 01, 2018 8:37 pm

NASA scientists have said that the gravitational waves detected last year from the collision of two stars has created the lowest mass black hole known to man.

AI may help search for gravitational waves: Study

April 10, 2018 8:21 pm

Scientists believe that gravitational waves can soon be found using artificial intelligence, saying that deep learning algorithms could better help determine these waves.

Afterglow from neutron-star merger continues to brighten

January 22, 2018 7:57 pm

New evidence has shown researchers that the neutron star merger, which helped conclusively detect gravitational waves, is releasing more complex radiations then previously imagined.


Gravitational Waves: The story in photos

February 12, 2016 1:45 pm

Scientists finally detected gravitational waves, the ripples in the fabric of space-time that Einstein predicted a century ago.


USA: Gravitational waves from black holes discovered

February 12, 2016 10:24 am

Gravitational waves detected, Einstein vindicated after 100 yrs