Scientists take a significant step forward in detecting Nanohertz Gravitational-wave background

An international research team has today published a detailed analysis of a candidate signal for the since-long sought gravitational wave background (GWB) due to in-spiralling supermassive black-hole binaries. Although a detection cannot be claimed yet, this represents another significant step in the effort to finally unveil GWs at very low frequencies, of order one billionth of a Hertz.