A Chinese submarine is seen in the sea near Qingdao in 2019. Photo: Mark Schiefelbien/AFP via Getty Images)
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

Topic |   China science
A Chinese submarine is seen in the sea near Qingdao in 2019. Photo: Mark Schiefelbien/AFP via Getty Images)
A Chinese submarine is seen in the sea near Qingdao in 2019. Photo: Mark Schiefelbien/AFP via Getty Images)
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