A Chinese submarine is seen in the sea near Qingdao in 2019. Photo: Mark Schiefelbien/AFP via Getty Images)
China antenna turns Earth into giant radio station, with signals reaching Guam
- The exact location has not been revealed but signals can reach submarines across vast distances, researchers say
- A joint experiment with Russia confirmed a ‘ping’ from the facility can also travel effectively underground
A Chinese submarine is seen in the sea near Qingdao in 2019. Photo: Mark Schiefelbien/AFP via Getty Images)