'Stunning' comet fragment captured lighting up the sky over Spain and Portugal
'Stunning' comet captured lighting up the sky over Spain and Portugal
Researchers believe last weekend's display might not be the only auroras we see this year
More stunning auroras may be on the cards this year, but a few things must line up first
Missed the auroras? We may get more this year, but we'll only get a few hours' notice before they happen
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