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Di: buzellig
La stagione "alta" per poter ammirare l'aurora boreale è quella invernale. Ma la natura, in un martedì di metà giugno in Canada, si è concessa un piccolo extra.
Un video in timelapse mostra infatti come a Thompson, nel Manitoba, il 16 di giugno si è potuto assistere ad un bellissimo spettacolo nei cieli, con le luci dell'aurora ben visibili attraverso le nuvole. In questa regione canadese il fenomeno celeste è molto frequente (fino a 300 notti all'anno), ma il picco solitamente avviene tra il mese di gennaio e quello di marzo.
L'aurora boreale è prodotta da particelle elettriche (elettroni e protoni) che, arrivando dal Sole, colpiscono l'atmosfera terrestre; l'energia prodotta dalle particelle solari si trasforma poi in luce visibile.
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