NASA probes have spotted a man-made bubble surrounding Earth

  • NASA scientists have revealed the presence of a huge man-made bubble that’s surrounding the Earth.
  • But it’s not some Russian plot or the effect of nuclear fallout, they have reassured humanity.
  • Instead, it’s likely to be the result of very low frequency (VLF) radio signals, used to communicate with deep-ocean submarines.
  • The bubble might be impacting the way high-energy particles move through the near-space environment though.
  • In a new study, researchers used NASA’s Van Allen Probes to look at the impact of man-made “space weather”.

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