Mysterious 'megafast electrons' are accelerated to the speed of light just outside Earth's magnetic field - and scientists say strange discovery could change particle physics forever
Astronomers have discovered electrons just outside the Earth's magnetic field travelling at almost the speed of light - and don't know why.
Nasa admits the the new results 'provide the first steps towards an answer, while opening up more questions'.
The particles are disturbed in regions just outside of Earth's magnetic field, and some are reflected into a turbulent region called the foreshock, where they are somehow 'super accelerated'.
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'This affects pretty much every field that deals with high-energy particles, from studies of cosmic rays to solar flares and coronal... read more
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