Gravitational waves once again!
Today, at a meeting of the American Astronomical Society in San Diego, it was announced that gravitational waves were detected once again. On December 26, 2015, at 03:38:53 GMT, scientists from the consortium LIGO Scientific Collaboration and Virgo Collaboration observed gravitational waves for the second time. It was established that the observed gravitational waves were created in the final phase of merging of two black holes 14 and 8 times the mass of the sun, which resulted in forming a single rotating black hole 21 times the mass of the sun. Significant contribution to this second direct observation of a gravitational wave in a double black hole was made by the POLGRAW team led by prof. Andrzej Królak from the Institute of Mathematics of the Polish Academy of Sciences.
