In 2015 for the first time gravitational waves were detected. Now some have been measured from supermassive black holes that are about to merge. Observing this, scientists hope to gain new insights in the makeup of the Universe. See http://www.neat-news.com/2023/06/181.php. #gravity #gravitational_waves

We Could Soon “Hear” the Gravitational Waves of Dying Stars
https://skyandtelescope.org/astronomy-news/we-could-soon-hear-the-gravitational-waves-of-dying-stars/

Massive, dying stars — behemoths tens of times the Sun's mass — should emit gravitational waves that we can hear with LIGO. The post We Could Soon “Hear” the Gravitational Waves of Dying Stars appeared first on Sky & Telescope .
#Astronomy_&_Observing_News #Stellar_Science #gravitational_wave_astronomy #gravitational_waves

#physics #gravitational_waves #nonlinear #parametric_resonance #china #japan #global #future

Breakthrough in the nonlinear generation of primordial gravitational waves

https://phys.org/news/2022-01-breakthrough-nonlinear-primordial-gravitational.html