How the earth shook for nine days and nobody knew why – video | Science

An unprecedented planetary scale seismic event vibrated the earth for nine days back in 2023, but the reason was not clear. Scientists initially had more questions than answers, qualifying the event an unidentified seismic object and undertake a gigantic scientific collaboration in several countries and institutions to reach the bottom of what really happened. Josh Toussaint-Strauss looks at the mystery at the heart of this scientific investigation