Although they’ve been together for about 4.5 billion years, the sun and Earth still seem to have a downright electric relationship, based on a colorful show of northern lights seen on Valentine’s Day.
Above, a short but stunning aurora lights up the sky over Bø in Vesterålen, Norway.
Such displays occur when the sun sends a burst of charged particles coursing toward Earth. A recent uptick in these so-called coronal mass ejections, or CMEs, that started recently has increased aurora activity.
Photograph Øystein Lunde Ingvaldsen
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