Bub­ble pushes ra­di­a­tion belts

Science Illustrated - - SCIENCE UPDATE -

Ra­dio waves from Earth keep high-en­ergy par­ti­cles from space at a safe dis­tance. In this way, the waves also pro­tect elec­tron­ics in low Earth or­bit. The ar­ti­fi­cial bub­ble of low1 fre­quency ra­dio waves was pro­duced by ra­dio sig­nals, which spread 24,000 km into space.

The edge of the bub­ble 2

co­in­cides with the outer ra­di­a­tion belt. Ac­cord­ing to sci­en­tists, the bub­ble pushes the belt, as data from the 1960s shows that the belt was closer when we did not use lowfre­quency ra­dio waves.

The outer Van Allen belt is 3 lo­cated 15-20,000 km from Earth. It can ex­pand and con­tract ac­cord­ing to so­lar ra­di­a­tion, and it in­cludes the most high-en­ergy elec­trons, which could harm satel­lites and other low Earth or­bit space traf­fic.

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