Could a century-old military communication method be quietly protecting our planet from deadly space radiation? NASA’s Van Allen Probes, launched in 2012 to study Earth’s radiation belts, stumbled ...

Researchers have known for three decades that the Earth is a potent radio transmitter, but they were never able to pinpoint where the noise was coming from. By using data from the four spacecraft of ...

Quasiperiodic (QP) very low frequency (VLF) emissions are intermittent bursts of electromagnetic energy, observed in the frequency range of approximately 3–30 kHz, that recur at quasi-regular ...